How to Use a Diamond Core Drill - The Secret To Making Big Holes
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- čas přidán 14. 04. 2023
- Today i will be showing you how to use a diamond core drill bit and how you can make a big hole in a wall. Common jobs such as tumble dryer ducts and bathroom extractor fan installations all require this method. I will be showing you the tips and tricks that make the job easy! If you like the content leave a like and please subscribe for more content like this as I've got a lot more to come and there will be something that will help you out.
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One little tip that I use to ensure you don't get plaster blow out on the inside is to use the core bit on the inside to just cut through that first half inch or so of plaster. Then move to the outside to cut the hole. The pilot hole will ensure that the two cuts line up perfectly, and as you have already cut through the plaster on the inside you don't get it blowing out as the core goes through. Sure, it does make a little dust on the inside but worth it to keep the plaster in one piece. 👍🏼
Thanks for sharing 😀
In your dreams mate
@@alemgas
What is in his dreams?
For pros, Makita do a dust extraction accessory for their diamond core drills - very expensive and heavy duty. As heavy duty DiYer, I do what you do
@@cuebj Potential cheaper solution? Henry + bag. Henry likes to eat all things, and rolls down stairs well, and are still pretty cheap. Mines 25yrs old and for the last 7 has been sucking up everything from masses of brick dust to lose cold ashes around the fire. Remarkable machines, especially the older ones.
You sir are a Godsend. Instructions clear and concise. That is a job I have dreaded but you have given me the confidence to do it myself. Many thanks.
Great video, I did an extractor fan recently using these bits 👍🏻
Top tips as usual, and I love how clean your safety goggles always are! Look forward to the renovations👍
Thanks. Those are new ones sent to me from Unilite. Great glasses so far.
@@TheDIYGuy1 Now do hearing protection and a dust mask. Wear all your PPE and set a good example
Thank you for the advice
Someone below mentioned it, kickback control, but didn’t quite get to the optimal solution. Left or Right there is always a drill-handle orientation that will let you catch the kickback, which is the only way the clutch will ever engage. For the hole here, rotate the whole drill clockwise 90, then release the handle and rotate that another 90 so it is pointing straight up. Now you can engage the drill with your right hand and the handle is such that kickback with be straight into your palm, allowing the clutch to trigger rather than having it rip away from your hand.
Nice video!
Great tip about running the pilot bit all the way through and core drilling back in from the outside. Wish I had thought of that doing all my room vents 🤣🤣
Glad to help!
great video - any tips to stop core sticking to abour - tried copper grease already thanks
Excellent video. Thank you.
Perfect video!
In Sweden we often use 125mm vent ducts.
What dimension do you recommend for the hole?
Great video i am drilling through a wall this week for extractor fan great tip drill out pilot hole first from inside and then drill from outside due to dust 👍👏
Glad it was a help
Excellent presentation as always!
Glad you like the video 👍
Informative video. Wondering if this would work with the Hilti TE 50-AVR.
Thank you very much
Your videos is very good
Everything is well explained
Please do more videos like this 👍
Excellent video and edit. look forward to the renovation series.
Thanks. I’m working on it. Currently I’m working on the edit for episode 1
Great tip on the pilot drill
Nice work, thankyou ..well done.
As always a great informative video 👍🙏
Cheers bud 😀
Great advice, and great Norfolk accent......"wull done bore keep on a troshin" 👍
I've saved a few quid having a go myself, which I didn't really have the confidence to do before watching videos like this. Nice one DIY guy, keep them coming!
Glad I could help! Thanks!
Brilliant tip on drilling from inside to out first!
Glad it was helpful!
For the pilot hole bit (8 mm) does that bit need to be diamond tip also? Or can I use the pilot bit that comes with the core bit to drill the pilot hole?
Good explanation!
A little advice: in the future, try to move the handle in 90 degrees to right or left. In case of stuck or something you will control the drill much easier
Good luck!
Awesome job 👍🏼
When I was drilling through some really dense comcrete using a 4.5” bit, it helped a lot to chisel away the inside core every inch or so
Thank soo much freind, i appreciate a lot your advices, i lear lot of things from you , thank again , good luck for futur videos
Great video! How would you go about enlarging an existing hole to fit a cooker hood that needs a bigger hole?
Lovely video mate
This is a very helpful video!
Glad you think so!
Great Job!!
Experience is the best teacher
You're great
Glad to have helped. Thanks
Great video !!!!! Looking forward tothe new series .........thanks 😊😊😊😊😊
Thanks. Soon, I’m working on the final edit for episode 1 😀
Great job and great video thanks for sharing with us this appreciations 🇩🇰🙏👍
Great video! Thank bro, wish you good health and success always!
Thanks a lot you too 👍
@@TheDIYGuy1 have nice day! bro
Great video as always, what would be great to see is what sealants to use for what’s going in the hole!
Some dust control and lung protection is essential. Vacuum and P2 respirator.
I've been prevaricating on this one for my cooker hood for months, I'm sure I'll brave up enough to do it eventually - my complexity is timber framed house so i got moisture barrier to deal with also; though I also have only one layer of brick to deal with so swings and roundabouts.
Hole saw or pad saw for the timber and plasterboard. The single thickness brick could be done with lots of holes using 6mm or 8mm SDS bit; then tap with small cold chisel. If you do hire or borrow diamond core gear, practice on a paving slab or block. Get very comfortable and solid in your stance for holding the tool and moving it through a position that mimics the hole you want to make - can you hold it without dropping from your line?
Thanks again for all the advice you give, i always make sure I never miss a video.
I appreciate that!
first time here .very informative will be looking out for more of your videos.
Awesome, thank you!
Very helpful video Thankiyou so much very appreciate your help.
Glad it was helpful!
Great video. One thing I'd point out in my case - even if it means some vertical ducting inside stay well clear of the DPC. My house sits on a plinth of some sort and if you hit that your hole stops there. Got lucky, but it was close!
DPC? Democratic Political Cheat?
Good point. I have exactly that: rectangular duct between wall and dryer, rectangular to round connector to duct in wall. Unexpected benefit is it's more flexible when I've changed position and brand of dryer - just shorten or lengthen the flat duct and change angle from dryer vent to wall vent
Beautiful job
Thank you! Cheers!
Your presentation skills are getting better and better. Much more natural these days. Good vid, ta.
Much appreciated!👍
great video thanks
Glad you enjoyed it
You can avoid any brake out on the inside by drilling a little that side first.
That’s certainly another option 👍
I cut and drill concrete for a living and I’ve broken my wrist with a 8” bit lol but was also using a hilti hand drill
Great and good quality video again . 👍 👌
Thank you 👍
The detector can find the cavity wall ties? Just to avoid drill over a wall tie 😮
Can you give any tips for enlagering a previous hole?
I was pleased to see you mentioned to put drill on drill only and not hammer! I really wish you would set example and were more ppe your setting yourself up for future I’ll health
Would you recommend going from outside then doing the inner wall from inside out over if you had pipes and cables nearby?
good work ! top video !
Thank you very much!
Good tips
I can tell you from experience that the core bit / drive shaft you are using will bind together after heavy use. It is then virtually impossible to separate the shaft from the bit and that means you cannot change bits thereafter. Before use I would recommend making and breaking the shaft/bit joint and also using copper grease or similar to make subsequent release of the joint more likely. I was drilling foundation wall that consisted of heavy-duty concrete blocks laid on their sides. The second point I would make is that the stub shaft being used will not get you through such long traverses. Eastablish whether you need a shaft extension before committing to task as separate purchase of long shaft is expensive. If these extensions binds and won’t release you will have an even greater problem to solve.
I eventually resorted to stitch drilling after first creating the first short penetration using diamond core. That worked well and was faster but not a neat finish on the exit side of the hole.
may as well get a condensing dryer as in a couple years we will see another video of you bricking it back up.
I’ve an old boiler flue hole to brick up if it’s something you want to see 😂
What is a recommended hand drill machine? I am asking about lowest watt machine required for a hole saw bit to drilling in properly?
how well does this work in fiberglass reinforced concrete and what happens if you run into rebar?
Hello mate whats the best length sds bit for this? I bought 400mm but think 600mm willl be better
It’s a good idea to put a slight rise, (out to in) on the hole, not level when to be used for vapour exhaust. Any moisture left in the ducting when machine stops will drain to the outside of the wall.
Nice tip, not something I’ve ever done.
Came here to say the same thing. Probably precautionary more than anything but it can’t hurt!
Absolutely! Very important that condensation finds its way out and not in!
But then if you're drilling through for something like a humidistat, the fan doesn't sit flush to the wall because the hole is on the wonk.
Your new home?
Congrats
Nice! I wonder if these can drill through sandstone and granite rock.
Oh how I wish I had one of these, instead it was a bolster and hammer job after drilling a grid of holes then mortar in after. The fun.
Core blimey!!! Cracking video 👍🏿👍🏿hole in one ⛳⛳⛳
Instagram top tip copper washers on the chuck adapter
Thanks 😊
Great video...👍🏿👍🏿👍🏿👍🏿
Thanks 👍
spraying water occasionally, helps with dust and provide some cooling to the the core drill.
I'm looking for an SDS drill that can drill big holes.
The SDS drill you link to is actually the one I was thinking of getting but everyone says it's not going to be able to cope with core bits over about 20mm and I need a corded drill for anything over this.
I notice you use a corded drill in this video, what's my best bet for site and domestic work as I don't really want to have to buy two for the different power ratings?
Cheers.
6:45 Forgot the glasses again ;). Nice video, thanks!
I really enjoyed the way you explained it.
Smart and clean.
Only for safety put on a mask too beside the safety glasses.
For protecting of all that dust entering to your lungs.
If you do this on daily basis it can lead to nasty lung diseases.
great video what min wattage drill to use?
Good video!
Thanks!
Easy 👍 please do pebble dash concrete next 😂😂😂
Very nice
Thanks
Have you got a video where you make a Review on HP2071? 🤔 Would like to see how good it is.
Secondary pro tip if dust/debris mitigation is a concern.
Bosch (and other tools brands) makes a suction cup attachment to the shop vac that, when the vacuum is activated, suctions it to the wall.
You put your drill or core but through the center of the bristle attachment and all dust and debris get sucked out as you go. Saves a huge mess and minutes of clean up afterwards.
This also saves you from wearing a respirator, which you should be for any masonry drilling application. Silica and mortar dust is incredibly harmful to human lungs.
👍
Are drainage pipes cut level also? Or do you need to cut them at the same angle the pipes need to drain? Is that easier than it sounds?
You forgot the dust mask.but also a question do those bits differ, like for dry cutting and wet.applying water
If you are drilling through something a bit tougher and maybe using a long extension, try drilling 4 holes at the top, bottom, left and right outer parts of the hole you are trying to cut. This makes the core bit easier to drill through the wall as it hasn’t got as much friction due to the holes. I’ve done this many times, it makes it a lot quicker and easier particularly if you are in a tight spot. Try it out.
Is this the right saw bit to cut through stucco, too?
Worth greasing, or anti-sieze paste on threads
I have a guild 1000w sds is this powerful enough?
Dust aside - if kick back is most likely going into the internal wall from cavity. Would it not make more sense at this point to drill inside outwards? Some does but avoids kickback and also blow out risk?
you rock!
Thanks 🤟
Can a Milwaukee 1" 9/16 rotary hammer be used with a core bit to drill through concrete?
Any advice for an overscrewed bit that won’t unscrew??
The shank type is this SDS Max? Cannot believe it would be a SDS plus.
is your drill machine rated for 117mm drill ???????
Another tip. Be prepared for polyethylene insulation to snow out from the core hole. I've done a hundred of these in the past and i always have a bag or bit of rockwool to hand to stuff in the cavity if i think it has insulation.
Good tip
My sds drill (dewalt) clutch is not man enough for 4" core drill spend more time trying to get it to bite. I think I need a proper core drill.
Hi can you make video about fuse box please
👍👍👍Thanks
Welcome 👍
to reduce the blow out on the inside even more I usually run the coredrill in 5-10mm before going outside
Thanks for sharing 👍
That DeWalt looks new. Wonder how it lasts. 8 to ten years ago, they'd get 5-star reviews and I was happy with mine. About to replace it a few months ago, 1-star reviews from scores of folk who had done the same but had to return and replace after one or two uses. Seems like corded DeWalt is not what it was. I got a Makita diamond core drill instead, not SDS. Wow! So much better engineered than the big yellow. The Erbauer bit kit is excellent (see my other comment)
i bought a dewalt core drill, absolutely hated it.went back to using makita core drill using gloves to stop back of D handle mould imprint on your palm, much better
Can I drill from the inside? I can't reach the brick on the outside because it's at height.
Thank you for your help 🙏
Yes however the dust will be pretty awful
Where can I get the complete set of this diamond core bits and the drill set
Hi, I used the Erbauer diamond core drill bit today to drill a hole through 9” worth of brick. It did the job perfectly but now the black extension is jammed tight into the 117cm drill bit. Any idea how I can get it unstuck please? I’ve tried WD40 on each side left it for like a couple of hours and then tried to unscrew it - and nothing worked. What else can I try please thanks 😊
Use a copper washer,you can make with a piece of solid copper wire.
Nice one. I have to drill a hole through my 100 year old natural stone house which has walls about 50 cm thick. Would this core bit do that when drilling from both sides ?
I think the centre of the wall may be fillled with rubble but I cannot be sure until I pilot drill it.
👍👍👍 If your wall's are anything like mine they will be filled with loose rubble. Good luck.
I wouldn’t use a dry core drill to go through 50 cms of natural stone, I’d use a wet drill (Same thing but with a water cooling set up to keep the bit cool).
@@Pete.Ty1 Just a side note. They fill some bank vault doors with ball bearings, so If you try drilling through a safe it will hit the ball bearings and break your drill bit, they also have a sheet of glass holding back some locking bolts. If the glass breaks then the bolts lock into the wall.
Corbett? Need Barker, too. Good tips, which we used a few years ago. For the more casual DiYer, this is a case where hiring the gear makes sense as you might just do it once. The Erbauer kit is pretty good, even for pro tradespeople who don't do this all the time. If it's a tiled wall, use a tile grinder to remove tiles with about 5mm extra radius and cut hole a few inches deep from the tile side first, then cut from the outside. The pilot hole ensures the two holes meet up. You might have to hack insulation from the cavity as the bit gets clogged
👍 cheers and thanks for sharing
Drill mode only, no hammer action - is it only specifically for this core bit u're using, or any type of core bits out there? my instructor teach me to use hammer drill function. But, i think that hammer mode will destroy the bits. So im confused 😅
I can't find the arbor adapter for sale anywhere for a regular hammer drill.
Always use the correct core drill with a clutch so save broken arms and wrists,i would not recommend use a standard drill for this type of job !
It was a clutched drill 👍
Exactly. The clue is in the name.
Core drill for a core bit.
SDS could land you a trip to A&E
I uses an SDS to core drill all the time, it has a clutch and has never kicked back at me.
Ok that's acceptable what you've stated But I did just that job some years back with a standard hammer drill. Yes I got got some slight kickback but I got the job done without any broken bones or bruises. Yes I took my time.
Young guy I was working with drilled a core hole using a standard SDS. Drill kicked back and he tore his rotator cuff in his shoulder. A month off work and it’s at least 5 years ago now and never been right since 😖. Core drill for a core drill bit every time.
I have2 concrete wall and 5 feet gap it’s between them how can I make that any idea?
Great video. Just a cautionary word of advice. Protect yourself with a dust mask/respirator in addition to safety glasses. See new warnings on Silica dust and its effects. Cheers
Cheers 👍