[Steve_Watkins]

Anyone know for sure?

Also I was wondering if the machine has the power to tap 3/4"-10 in 3/4" A 36 plate.

[jmullett]

Honestly I just use an ER collet and holder on #8 to 5/8 inch threads. Bigger than that I generally use a thread mill from LakeShore Carbide. I haven't had the best luck with smaller ones due to breakage and never had a job large enough volume to be worth the risk or effort to develop.

[DarkStarMedia]

At that size I would also threadmill them. I do a lot of rigid tapping in collet and drill chucks for 10-32. I have found roll/form taps work well. It also depends on if you have a gear box or not. there were 3 spindles available, a direct drive, a high speed, and a high torque.

I also use Lakeshore carbide stuff.

Richard

[Steve_Watkins]

Mine has the gearbox and a top speed of 6500... I can really slow it down also

I had thought that there as a compression tap holder ( or some other type) needed.

Good idea on the thread mill

[DarkStarMedia]

I think that is the high torque spindle. You could likely rigid tap that, no compression holder needed just get the code right. I would still use a thread mill if you are making several parts. Less problems and is likely faster.

3/4-10 Carbide Thread Mill

Richard