Need help in finding 10-32 threaded shank drills

Shaybuilder · Aug 15, 2019

I am in need of #40 threaded shank stubby drill bits with a 10-32 thread. I can't find them is MSC catalog nor on ebay, any leads on where or who sells them. Everything I find has a 1/4-28 thread.

Thanks
Ken

Milland · Aug 15, 2019

Easy to make your own, use a few 6-32 set screws to lock the shank in.

And if you don't want to go that route, call these guys, they seem to offer threaded shanks in 5-40, 10-32, and 1/4-28:

Craig Tools International | Rotary Cutting Tools for the Aerospace Industry

Bill D · Aug 16, 2019

Could you rethread the shanks? Or take a regular drill and thread there shanks from round?

strokersix · Aug 16, 2019

Bill D said:
Could you rethread the shanks? Or take a regular drill and thread there shanks from round?

I've done this. It was a bigger twist drill, about 1/2 inch. Shank was soft enough to turn and single point thread it. Smaller bits might work as well, or not.

JST · Aug 16, 2019

You must have a small "Terry angle" or similar.

#40 being smaller than the 10-32, it seems you will need to make a holder, or else attach a sleeve which is threaded (if the size difference is enough). I have a number of holders with mine, and have not needed to need to make another, but it would not be too hard.

E189552 · Aug 16, 2019

You might try Brown Tool (browntool.com)
USATCO lists those as special order.
US Tool might have them (ustool.com)
Most of the major drill companies make those, just not advertised.

Few years ago I could have shipped you a handful

Shaybuilder · Aug 16, 2019

Problem solved. I figured the drill had to been silver brazed into the holder. Heated it up, pulled out the broken drill and brazed in a new drill. They should be easy enough to make and when I have some time I will make up a bunch of threaded holders and drill them to the size of drill as needed.

Ken

Search

Largest Manufacturing Technology Community on the Web

Search

Need help in finding 10-32 threaded shank drills

Shaybuilder

Cast Iron

Milland

Diamond

Bill D

Diamond

strokersix

Hot Rolled

JST

Diamond

E189552

Plastic

Shaybuilder

Cast Iron

Similar threads