You do great basic videos for me dummies so I had to subscribe. Could you please do a video on the different types of carbon steels a normal shop may have and how to tell what end mill you would use at what speeds?? Have you ever done a video on threading with a CNC??
3:29 where you show it, can I suggest you toss up a card to your shop magnet video? I just got my magnets and will be making a few of those in the next coming weeks. Thanks again for the great practical video!
What material are you drilling through? Regardless, I would grind the weld flat in that area if possible. Definitely start with a short spot drill to establish the location first. That will keep your 1/8 drill from wandering. If you’re drilling stainless or steel I'd use carbide because of the heat affected zone. Aluminum, you’ll be fine with HSS.
@@StuartdeHaro Thanks. It's 4140 that was tigger over toward the bottom of the original hole. I need to drill down about 1/4" more. So far non e of my bits have done much. A few years ago Irwin made hss bits that worked but the last ones I bought looked like they were made in China.
@@targetshootr 4140 will definitely be hard at the weld. Hardware store drills probably aren't going to get the job done. If you can only find HSS or cobalt locally, try running them at 1000rpm or slightly lower with plenty of oil. Carbide will cut through it no problem but may not survive long going between the weld and the parent material. I'd keep the RPM conservative there, maybe 2000, again with plenty of oil. I'm assuming you're drilling this with at least a drill press, right? Not a hand drill?
@@StuartdeHaro I have a hand drill and a drill press. I broke off one bit inside the hole using the press but I can control the hand drill if it binds. I can buy bits online, just not sure which is the most effective. Thanks
The grade should be chosen based on the material you are cutting, not the size of the cutter. There are different grades for steels, non-ferrous metals, aluminum, woods, etc. Most industrial suppliers will have a chart of some kind explaining them or have a field when you're searching to narrow it down by the material you are cutting. I have had very good results with the US made carbide endmills offered by shars.com. They're very good quality, cut with a great surface finish, and the price is quite reasonable. They're not sponsoring me. I'm just a very happy customer.
Look I am starting a new business I and making tobacco pipes out off rock and fossil and flint more rock than flint so what would be my best use for rock and fossil like material to use for that issue ?
You can but I wouldn't. The SFM is really low, so you'll need to turn at a pretty slow RPM unless you have a small cutter. Even then, it will dull faster than a carbide cutter will.
i have been learning from internet whole my life, and this is the right way to teach people effectively.
Another good choice of a topic to cover. 👍
Nicely informative, esp the tip about chipping in carbide vs dulling with HSS
Great info thx!
You do great basic videos for me dummies so I had to subscribe. Could you please do a video on the different types of carbon steels a normal shop may have and how to tell what end mill you would use at what speeds?? Have you ever done a video on threading with a CNC??
Useful as usual. Thank you.
Great subject matter and very well explained. Thanks for the vid, enjoyed, cheers!
Very helpful, thanks 😊
Great information
Much thanks for the info....
3:29 where you show it, can I suggest you toss up a card to your shop magnet video? I just got my magnets and will be making a few of those in the next coming weeks. Thanks again for the great practical video!
Done! Thanks for the suggestion.
Super
I learned
I need to drill 1/8" hole through a tig weld. Which kind of bit would be best. Thanks
What material are you drilling through? Regardless, I would grind the weld flat in that area if possible. Definitely start with a short spot drill to establish the location first. That will keep your 1/8 drill from wandering. If you’re drilling stainless or steel I'd use carbide because of the heat affected zone. Aluminum, you’ll be fine with HSS.
@@StuartdeHaro Thanks. It's 4140 that was tigger over toward the bottom of the original hole. I need to drill down about 1/4" more. So far non e of my bits have done much. A few years ago Irwin made hss bits that worked but the last ones I bought looked like they were made in China.
@@targetshootr 4140 will definitely be hard at the weld. Hardware store drills probably aren't going to get the job done. If you can only find HSS or cobalt locally, try running them at 1000rpm or slightly lower with plenty of oil. Carbide will cut through it no problem but may not survive long going between the weld and the parent material. I'd keep the RPM conservative there, maybe 2000, again with plenty of oil. I'm assuming you're drilling this with at least a drill press, right? Not a hand drill?
@@StuartdeHaro I have a hand drill and a drill press. I broke off one bit inside the hole using the press but I can control the hand drill if it binds. I can buy bits online, just not sure which is the most effective. Thanks
@@targetshootr Alright. Just be aware that carbide is more apt to shatter especially in a hand drill. Definitely wear good safety glasses!
SIR BEST TUNGSTEN CARBIDE GRADE FOR CNC BITS LIKE 3MM, 4MM, BALLNOSE AND ENDMILL 2FLUTE
The grade should be chosen based on the material you are cutting, not the size of the cutter. There are different grades for steels, non-ferrous metals, aluminum, woods, etc. Most industrial suppliers will have a chart of some kind explaining them or have a field when you're searching to narrow it down by the material you are cutting. I have had very good results with the US made carbide endmills offered by shars.com. They're very good quality, cut with a great surface finish, and the price is quite reasonable. They're not sponsoring me. I'm just a very happy customer.
Look I am starting a new business I and making tobacco pipes out off rock and fossil and flint more rock than flint so what would be my best use for rock and fossil like material to use for that issue ?
For any kind of stone, you’ll want a diamond coated tool. Look into the kind of cutters used for cutting glass. They will do the job for you.
can i use m42 grade hss for Ti6Al4V milling.
You can but I wouldn't. The SFM is really low, so you'll need to turn at a pretty slow RPM unless you have a small cutter. Even then, it will dull faster than a carbide cutter will.
Hi sir .is there any way to communicate together privately