I finally ordered a pair of those shorts and gave them a try. My hammer drill worked about the same, but I was able to finish the job in a fraction of the time because my neighbors kept stopping by and offering to help. Nice guys!
A rotary hammer is basically a small jack hammer combined with a drill. The hammering is completely independent from the rotation, and it is quite powerful. A hammer drill is a drill with cams around the chuck to make it bounce and "hammer" the surface you are drilling when it rotates. The impacts are much less energetic than those from a rotary hammer.
For future reference to everyone on what the difference is. Impact drilling does not cut material as regular drilling does, all the front end of an impact drill does is bash into the material to dislodge a piece which then gets cleared out by the spiral. So the absolutely primary part of this process is impact force. Which is where a mere drill has problems as they only put a small toothed disk in there that generates small vibrations, where as the rotary drill has a huge chunk of metal getting smashed along the shaft. The drill might do something with soft/small particle masonry, but the moment you reach a harder piece it hasn't got the impact force to hammer out material.
2 different tools for 2 different purposes. If you want a 1/2 chuck with hammer capabilities but are not drilling through rock often a hammer drill is the way to go. If all you are doing is drilling rock then a rotary is what you want.
This video was simple, yet very useful. I'm doing some training for work, and I'm reading up on different hammer drills and rotary hammers. Seeing you use the two tools gave me a lot of insight, and will be able to help customers more now that I've seen a demonstration. Thanks a lot.
Found this video while looking for a hammer drill. Finished the video, and ordered a Rotary Hammer Drill instead 😄I didn't even know this tool existed until about 5 minutes ago. Thanks mate! saved me buying the wrong thing.
Exactly what I needed to know--I'm going out first thing in the morning to add to my tools. The hammer drill took WAY TOO long to drill through some concrete tonight.
I was looking to buy a hammer drill but I am now convinced that a rotary hammer would be a better choice for me. Your demonstration made this very clear. Thank you!
Very very very useful video. I wish more content uploaders had more respect for their audience as you clearly do. No self-indulgent waffling. Just useful information. Thank you very much.
I desperately was trying to drill a 3" hole in a concrete wall with a Bosch hammer drill until I gave up and went to buy a basic Lidl rotary hammer. Best décision ever.
I was asking myself the same question and researching online came across your comparison. Thank you for adding to the collective knowledge of the internet. Extremely eye opening, seeing the difference.
I once tried drilling a one inch hole in a dense concrete slab with my Dewalt hammer drill, and it took me over an hour if I recall. It took me forever to get about 1-2" deep. I finally gave up and went down to a 3/8" bit and FINALLY got through, and going back to the 1" bit took me another good while (seems like a bad idea, because doing that would eliminate the pointed tip of the bit from having it's penetrating action). I can't believe the drill didn't catch on fire before I was done (I quit about every 30-60 seconds to try to let it cool off, which made the job take much longer). It still works, but I use it for smaller jobs. And yeah - that one inch bit was PURPLE when I was done. Wish I had seen t his video before I bought that hammer drill... Live and learn.
Wow that just settled my decision. I was looking at CPO Outlet's Malwaukee Heavy Duty hammer drill vs the 7A Rotary hammer for a bit more and was wondering how they match up when drilling concrete. Thanks a billion for the video!!!
Great comparison! I bought a Hitachi SDS 8 years ago as a treat to myself, and it's still going strong (metal gearbox, not the cheapo one). Over the years I have lent it to various friends and family, and every single one of them ends up buying their own SDS shortly after. I honestly can't understand why there are still regular hammer drills available.
Great informative video. I need to drill some holes in concrete so I can secure a post to an existing slab of 6" thick concrete. Very helpful, good video quality and narration
I would emphasize how clean the holes are. It makes a big difference in how secure the anchors are. Also SDS drills are available in much longer lengths which can be a big help for your back when drilling the floor.
Excellent video. Bought a Craftsman 1/2 in. corded drill/hammer drill thinking that I could drill into my basement and garage concrete walls. Exactly as you showed, once into aggregate, it's not going anywhere! Going to get an SDS hammer drill.
I finally calmed down after reading some "Larry Bird shorts" comments and the youtuber responding with saying his wife said he should be embarrassed for uploading this video. Some funny stuff and humor the up loader has.... With that aside, thank you very much for the comparison between the 2 types of concrete hole makers. I believe the rotary hammer is the way to go for my intended applications. Even in 2019, "vs" videos barely came out about 1 year ago. Thanks a bundle, sir.
Hammer drill: A drill that has a small impact mechanism. Useful for drilling small holes in brick, cinder block and other softer materials. Rotary hammer: A demolition hammer with a rotating bit. Useful for drilling up to 2 inch holes in hard materials including concrete, granite e.t.c.
Hammer Drill : light weight, compact, easy to transport to different jobs and use around the job site. Versatile - can be used for small - medium size holes (can bore large holes if you progress from smaller to medium to larger) through many different material surfaces with minimal risk to damage of home or property. Sds rotary drill : heavy, more durable, more powerful and robust - specializes in masonry/concrete drilling, good for boring large holes, over and over again. Usually used in construction work/heavy duty drilling where you need to drill multiple holes. Not versatile as far as doing more delicate or intricate, smaller holes on more fragile material.
Rotary hammers like magic, when I got mine I tried the 25mm bit in concrete and it it just fell through it, I had to drill a few more holes to make sure it wasn't a bad bit of concrete but nope it is fearless with concrete also it will go through reo bar just have to take it easy so it doesn't deflect but it still chews through anyway. We tried drilling hundreds of holes through the edge of some concrete to fit reo bar for a joint with a makita hammer drill and after 2 holes decided
Just remember that drilling holes on the ground, where gravity helps with the weight of the tool, is easier than drilling a wall or overhead up on the scaffold. Overall the rotary hammer wins, but it has a hefty weight.
You're right regarding the weight and gravity part, but belive me the difference between these are still evident. I live in a concrete flat where drilling a hole with a drill hammer takes minutes, and with a rotary hammer it is no more than 10-20 seconds. My device is 2.2 KG, so less than 5 pounds.
Thanks for the video, i have a big old makita hammer drill and i just opened up a case i had in the garage of an aeg roto hammer and didnt know the diff. They aeg makes the big makita look not soo big. These were all my grandpas tools as he was a general contractor and has since passed but going through the garage i find all sorts of tools. My makita is same size as your dewalt and the aeg is huge like your roto
Great video! I've spent many wasted hours with a hammer drill and concrete. Sprained my neck last time, too! Ordered a rotary hammer last night. Regular $1050 on clearance sale to $380. Cant wait to get it and save my back, neck, elbow, shoulder....
@bahathir Thanks much for your video response. My one regret regarding my video is that I was unable to hit the aggregate that plagued me while working on the actual basement walls. When I DID hit a piece of granite river rock in the foundation wall my progress was often literally stopped until I hammered and punched it with a long slender cold chisel. My video makes the two devices look nearly equal, when in reality the hammer drill is a door stop unless drilling cinder block. Excellent demo!
Thank you for sharing. Good information. Also, I didn't know you could put a window in concrete like that, which I may do someday, now that I know it is possible.
Nice video, I've used both of these tools and for drilling concrete, the "more hammer....less drilling" is the only way to go. As a millwright....there were days I installed 2-3 THOUsand concrete anchors...big warehouses with many Pallet Racks...Here in Calif...all Pallet racks must be anchored for seismic requirements...(earthquakes)....the high-speed 'drills' are also good at melting the silver solder and losing the tungsten-carbide tips....
You were probably working a 10 hour day. A bolt installed every 12 seconds is still smoking, no wonder you were melting bits. Did you switch drills off or just run em till they smoked?
@@windymeadowsoxteam7783 OK, I guess I should have checked my reply better....a hundred to 200 a day. one to two boxes of 100 anchors...3/8" and I drilled them to maybe 2-2 1/2". Big BOSCH SDS roto-hammer.
we had a company out installing a new heat and air unit, a few weeks later I couldn't find my Hilti. Couldn't say for sure that my drill left with them. I miss my old Hilti, it gets the job done. 😂
This video is a masterpiece 👏. Exactly the information that I was looking for. I am mounting a toilet and needed only to drill two holes in concrete. I have a hammer drill, but it will not drill the aggregate . I need the holses in a certain place to line up with holes in the toilet. . I previously rigged it because my hammer drill sucks. My rig lasted twenty years, but it is leaking now. I know I can drill my holes with a rotary hammer drill. Thanks for making this video. No one else has shared this information. Great job 👏
Great video comparison! Im in the middle of drilling with my Bosch hammer drill into some concrete wall to put up some shelves and have spent over 2 hours for 6 holes!! and to make it worse 3 of the holes are oversize and the bolt anchors struggles to do up tight... I need a Rotary Hammer Drill!!
Same experience. I bought a large corded Ryobi hammer drill and it sucked. Borrowed my electrician friends compact cordless rotary hammer and it drilled holes in concrete all day. The other couldn't do one
Anyone know if that style of dewalt hammer drill with a paddle mixer (DW511 in particular) would be sufficient for mixing up 5 gallon buckets of concrete with minimal aggregate? (and switched to normal drill mode)
Thanks im trying to drill 4 =5/8 holesto mount a harbor freight metal bender and im pulling my hair out trying to drill into the concrete i have it mounted on wood now need to go into the concrete ?
Eleven years later (5.26.2023) and this video is still the most helpful one I have found on the subject!!! Thanks for posting it.
I finally ordered a pair of those shorts and gave them a try. My hammer drill worked about the same, but I was able to finish the job in a fraction of the time because my neighbors kept stopping by and offering to help. Nice guys!
Fghsdjiig
Omg lol. I read this 3 times before the video actually started and I did not understand until watching the video 🤣
Need the sneaks too to really kick it up a notch
Where can I get those shorts? Nice video man.
@@brandyprice7578 KO l la
A rotary hammer is basically a small jack hammer combined with a drill. The hammering is completely independent from the rotation, and it is quite powerful. A hammer drill is a drill with cams around the chuck to make it bounce and "hammer" the surface you are drilling when it rotates. The impacts are much less energetic than those from a rotary hammer.
One of the more straightforward and concise tool demos I've seen anywhere. Told me what I needed to know, thanx much!
For future reference to everyone on what the difference is.
Impact drilling does not cut material as regular drilling does, all the front end of an impact drill does is bash into the material to dislodge a piece which then gets cleared out by the spiral. So the absolutely primary part of this process is impact force.
Which is where a mere drill has problems as they only put a small toothed disk in there that generates small vibrations, where as the rotary drill has a huge chunk of metal getting smashed along the shaft.
The drill might do something with soft/small particle masonry, but the moment you reach a harder piece it hasn't got the impact force to hammer out material.
2 different tools for 2 different purposes. If you want a 1/2 chuck with hammer capabilities but are not drilling through rock often a hammer drill is the way to go. If all you are doing is drilling rock then a rotary is what you want.
I’m drilling into an inch thick blue stone capstone so I can run a wire to a lamp. Which is best for this job? The hammer or the rotary?
Rotary always especially through brick. Some are harder than rock no kidding!
This video was simple, yet very useful. I'm doing some training for work, and I'm reading up on different hammer drills and rotary hammers. Seeing you use the two tools gave me a lot of insight, and will be able to help customers more now that I've seen a demonstration. Thanks a lot.
Found this video while looking for a hammer drill. Finished the video, and ordered a Rotary Hammer Drill instead 😄I didn't even know this tool existed until about 5 minutes ago. Thanks mate! saved me buying the wrong thing.
didn’t know 😆
11 years later and you probably got best straight forward explanation I watched online. Cheers
Exactly what I needed to know--I'm going out first thing in the morning to add to my tools. The hammer drill took WAY TOO long to drill through some concrete tonight.
I was looking to buy a hammer drill but I am now convinced that a rotary hammer would be a better choice for me. Your demonstration made this very clear. Thank you!
Depends on what you are doing with it.
7 years later and now I’m being informed enough to realize I need the rotary hammer. Glad I didn’t open the box of the new hammer drill I just got.
Very very very useful video. I wish more content uploaders had more respect for their audience as you clearly do.
No self-indulgent waffling. Just useful information. Thank you very much.
I desperately was trying to drill a 3" hole in a concrete wall with a Bosch hammer drill until I gave up and went to buy a basic Lidl rotary hammer. Best décision ever.
This might be the best commercial for a rotary hammer I've seen.
But that is what rotary hammers are for, drilling into concrete.
Clive Ellis Pretty much to to extend productivity
Lol
Side by side reviews are the best. Good work
Great video, but those 80's Larry Bird / John Stockton booty shorts are killing me!! Lol
really tho...
hey man! it was 2011 when he did this; fashion was a whole different world back then :)
in 2011 i was 37 and was NOT wearing short shorts .. EVER ...
😂😂😂😂😂
he got a nice pair of legs - why bother?
I was asking myself the same question and researching online came across your comparison. Thank you for adding to the collective knowledge of the internet. Extremely eye opening, seeing the difference.
2:12 "One of the best holes I've drilled!!"...slogan of the decade.
Bud you just saved me about 150 bucks and some serious headaches. I appreciate you.
I just bought a hammer drill, now I can see I really needed a rotary hammer.
I once tried drilling a one inch hole in a dense concrete slab with my Dewalt hammer drill, and it took me over an hour if I recall. It took me forever to get about 1-2" deep. I finally gave up and went down to a 3/8" bit and FINALLY got through, and going back to the 1" bit took me another good while (seems like a bad idea, because doing that would eliminate the pointed tip of the bit from having it's penetrating action). I can't believe the drill didn't catch on fire before I was done (I quit about every 30-60 seconds to try to let it cool off, which made the job take much longer). It still works, but I use it for smaller jobs. And yeah - that one inch bit was PURPLE when I was done.
Wish I had seen t his video before I bought that hammer drill... Live and learn.
drill a 1/4" pilot hole first. Then drill your !' hole. You may find it will cut your time down to 10-15minutes.
That was a very good comparison of the 2 drills. Thanks
The hammer drill is a multipurpose tool for smaller jobs.
The comparison is null
Wow that just settled my decision. I was looking at CPO Outlet's Malwaukee Heavy Duty hammer drill vs the 7A Rotary hammer for a bit more and was wondering how they match up when drilling concrete. Thanks a billion for the video!!!
Counted the time for each:
30 seconds for hammer drill
12 seconds for rotary hammer
What you didn't count was the amount of force needed to push the hammer drill vs. the significantly smaller force needed for the rotary hammer drill.
@@edinfific2576 I'm about to hop in my time machine and let this fool know he should be measuring the FORCE as well!
@@edinfific2576 yeah he didn’t count that
Great legs man!! And the video was super helpful too!! Thanks!
Folks who come up with designs for these tools & engineers who find ways to build them to make our lives so much easier are awesome.
Great comparison!
I bought a Hitachi SDS 8 years ago as a treat to myself, and it's still going strong (metal gearbox, not the cheapo one). Over the years I have lent it to various friends and family, and every single one of them ends up buying their own SDS shortly after. I honestly can't understand why there are still regular hammer drills available.
i bought a hart 20v hammer drill
Wow, wish I saw this yesterday before drilling those holes in my brick - my hammer drill took FOREVER on just a few holes. Thanks for sharing!
Did you have your bit all the way against the back of the chuck? If not the hammer won't tap the bit
You used hammer bit? Designed for hammering cant use regular bits meant for drilling wood and metals.
Great informative video. I need to drill some holes in concrete so I can secure a post to an existing slab of 6" thick concrete. Very helpful, good video quality and narration
Great Job on the demonstration
I would emphasize how clean the holes are. It makes a big difference in how secure the anchors are. Also SDS drills are available in much longer lengths which can be a big help for your back when drilling the floor.
Very good and informative demonstration. Thank you.
The shorts are lit
Lmao
Pair that with romper and were set
Lmmfao
great video! EXACTLY what i needed to know! i just started drilling into a concrete slab in my back yard with my regualr cobalt drill. took forever!!
Excellent video. Bought a Craftsman 1/2 in. corded drill/hammer drill thinking that I could drill into my basement and garage concrete walls. Exactly as you showed, once into aggregate, it's not going anywhere! Going to get an SDS hammer drill.
I finally calmed down after reading some "Larry Bird shorts" comments and the youtuber responding with saying his wife said he should be embarrassed for uploading this video. Some funny stuff and humor the up loader has....
With that aside, thank you very much for the comparison between the 2 types of concrete hole makers. I believe the rotary hammer is the way to go for my intended applications. Even in 2019, "vs" videos barely came out about 1 year ago. Thanks a bundle, sir.
You can also get chisel bits for rotary hammer for removing tile.
Thanks for sharing. That rotary hammer drill is a beauty.
Thank you. I've been searching for this video for weeks.
Hammer drill: A drill that has a small impact mechanism. Useful for drilling small holes in brick, cinder block and other softer materials.
Rotary hammer: A demolition hammer with a rotating bit. Useful for drilling up to 2 inch holes in hard materials including concrete, granite e.t.c.
Thank you for this tidbit of info. It really helps to understand which situation is best for either tool.
Thanks
Not every rotary hammer is meant for demolition. The smallest ones have 1.7 Joule of energy, a proper demolition hammer has 7.5 Joule and up.
Hammer Drill : light weight, compact, easy to transport to different jobs and use around the job site. Versatile - can be used for small - medium size holes (can bore large holes if you progress from smaller to medium to larger) through many different material surfaces with minimal risk to damage of home or property.
Sds rotary drill : heavy, more durable, more powerful and robust - specializes in masonry/concrete drilling, good for boring large holes, over and over again. Usually used in construction work/heavy duty drilling where you need to drill multiple holes. Not versatile as far as doing more delicate or intricate, smaller holes on more fragile material.
Yea its multi purpose.
AWESOME, Thanks for the upload!
Rotary hammers like magic, when I got mine I tried the 25mm bit in concrete and it it just fell through it, I had to drill a few more holes to make sure it wasn't a bad bit of concrete but nope it is fearless with concrete also it will go through reo bar just have to take it easy so it doesn't deflect but it still chews through anyway. We tried drilling hundreds of holes through the edge of some concrete to fit reo bar for a joint with a makita hammer drill and after 2 holes decided
Thanks for showing that! I was wondering why the prices were so different and now I see why!
Just remember that drilling holes on the ground, where gravity helps with the weight of the tool, is easier than drilling a wall or overhead up on the scaffold. Overall the rotary hammer wins, but it has a hefty weight.
You're right regarding the weight and gravity part, but belive me the difference between these are still evident. I live in a concrete flat where drilling a hole with a drill hammer takes minutes, and with a rotary hammer it is no more than 10-20 seconds. My device is 2.2 KG, so less than 5 pounds.
Thanks for the video!
Great video thanks for the heads up
Great demo. Thanks!
Thanks for this video! Very helpful!
Thanks for the video, i have a big old makita hammer drill and i just opened up a case i had in the garage of an aeg roto hammer and didnt know the diff. They aeg makes the big makita look not soo big. These were all my grandpas tools as he was a general contractor and has since passed but going through the garage i find all sorts of tools.
My makita is same size as your dewalt and the aeg is huge like your roto
Awesome! Exactly what I was looking for! Thank You!
Thanks for the video. It helped me to decide to spend the extra money and buy a third drill.
Great video!
I've spent many wasted hours with a hammer drill and concrete. Sprained my neck last time, too! Ordered a rotary hammer last night. Regular $1050 on clearance sale to $380. Cant wait to get it and save my back, neck, elbow, shoulder....
Happy 17th anniversary on uploading this video. Over a million views! Cheers! (good video, rotary hammers are no joke)
@bahathir Thanks much for your video response. My one regret regarding my video is that I was unable to hit the aggregate that plagued me while working on the actual basement walls. When I DID hit a piece of granite river rock in the foundation wall my progress was often literally stopped until I hammered and punched it with a long slender cold chisel. My video makes the two devices look nearly equal, when in reality the hammer drill is a door stop unless drilling cinder block. Excellent demo!
Thank you for this video. You've saved me hours of labor. Rob
Wow, this is a nice lesson and a convincing comparison. Gonna go shopping . . .
Thank you!
That is a nice demonstration...thanks for the vid.
Great informative video. Thanks for making this
thanks man, you definitely answered my question!
Thanks a million!
oh this explained why it took me so much times to drill a hole, my hammer drill just doesn't work on concrete
Fantastic video. Thank you!
Great video. Now deciding on the rotary hammer drill. What features are good (eg blows per minute, amps, etc)
This is exactly what I needed, just bought a house made of mostly concrete!
Thank you for the lesson!
thank you for the legs
Thank you for sharing. Good information. Also, I didn't know you could put a window in concrete like that, which I may do someday, now that I know it is possible.
You're the best coach and you're experience is real
Bless you man, very helpful
Nice video, I've used both of these tools and for drilling concrete, the "more hammer....less drilling" is the only way to go. As a millwright....there were days I installed 2-3 THOUsand concrete anchors...big warehouses with many Pallet Racks...Here in Calif...all Pallet racks must be anchored for seismic requirements...(earthquakes)....the high-speed 'drills' are also good at melting the silver solder and losing the tungsten-carbide tips....
You were probably working a 10 hour day. A bolt installed every 12 seconds is still smoking, no wonder you were melting bits. Did you switch drills off or just run em till they smoked?
@@windymeadowsoxteam7783 OK, I guess I should have checked my reply better....a hundred to 200 a day. one to two boxes of 100 anchors...3/8" and I drilled them to maybe 2-2 1/2". Big BOSCH SDS roto-hammer.
Adjust the front handle to 90 degree to the trigger handle for a better hold... the way you have it is for transportation or storage.
This is my submachine hammer gun
Great review. Thank you
awesome comparison!
Thank you for the info! Really good
we had a company out installing a new heat and air unit, a few weeks later I couldn't find my Hilti. Couldn't say for sure that my drill left with them. I miss my old Hilti, it gets the job done. 😂
imaslowlerner Slam a review up. They don't just go walkies.
As a leg fan and a leg lover, I would say that these are the prettiest legs I have ever seen.
Are you male or female ?
@@handyman7297 Hermaphrodite
Thanks for the info a big help .
Really appreciated.
This video is a masterpiece 👏. Exactly the information that I was looking for. I am mounting a toilet and needed only to drill two holes in concrete. I have a hammer drill, but it will not drill the aggregate . I need the holses in a certain place to line up with holes in the toilet. . I previously rigged it because my hammer drill sucks. My rig lasted twenty years, but it is leaking now. I know I can drill my holes with a rotary hammer drill. Thanks for making this video. No one else has shared this information. Great job 👏
Okay, make that "one turns somewhat while mostly pounding, and the other pounds somewhat while mostly turning."
Great comparison video for a layman like myself!
If you clear the dust out occasionally as you drill, it won't bind and spin on you, and you won't have to pull so hard to get the bit out of the hole.
He sounds a little like Beavis.
Thanks for the info and video! I'm wall mounting a massive tv and now I know I'm going with the rotary!! Thx brother
Jimmy Lee Motta Beavis would like to drill some holes and stuff.
Thanks. Very helpful
Sweet video! Does that rotary have a hammer only function? I am wondering how it fairs against an air hammer for chiseling.
Good job tank you for your video, very helpful
Great video!
Great video comparison! Im in the middle of drilling with my Bosch hammer drill into some concrete wall to put up some shelves and have spent over 2 hours for 6 holes!! and to make it worse 3 of the holes are oversize and the bolt anchors struggles to do up tight...
I need a Rotary Hammer Drill!!
Same experience. I bought a large corded Ryobi hammer drill and it sucked. Borrowed my electrician friends compact cordless rotary hammer and it drilled holes in concrete all day. The other couldn't do one
that's awesome, thanks dude
Anyone know if that style of dewalt hammer drill with a paddle mixer (DW511 in particular) would be sufficient for mixing up 5 gallon buckets of concrete with minimal aggregate? (and switched to normal drill mode)
it was great video thank you!
What happens if you drill in the corners of the concrete?
My hammer drill has a a round dial on the trigger. What exactly is that for? Please be specific. Thank you
So if im not mistaken does a roto hammer work like a hybrid freak between an impact driver and hammer drill?
I've got the makita hr4511, beast for going through anything.
Thanks im trying to drill 4 =5/8 holesto mount a harbor freight metal bender and im pulling my hair out trying to drill into the concrete i have it mounted on wood now need to go into the concrete ?
Thank you!
how often are you supposed to clean the inside of hammer drills?
if i want a chipping function.. what type of drill should i take?? impact,hammer or rotary
You sound like bill paxton, anyway can we use this for breaking the concrete, how effective will it be?