Question about tapping

[wjr]

If I wanted to tap an MPA-3 for a 10-32 QEV, what size drill bit would I use? I've never tapped anything before. Also, what is the thread pattern for a clippard QEV?

Thanks.

[wjr]

Anyone?

[redlaser666]

10-32 use a #21 drill

Heres a link to where you can fing more info:

http://www.engineersedge.com/tap_drill_chart.htm

[wjr]

Cool. Thanks.

I'm still a little confused though. Don't I need to know the thread count of the QEV so I know what tap to use?

[fshrmn76]

if 10-32 is the size of the qev then you need to use a 10-32 tap. 10 refers to the size and 32 is threads per inch.

[wjr]

Oh. I'm much more of a machine shop newb then I thought.

Thanks