Drill & Tap PTA for 8-40 Screws?
Hi Y'all,
Anybody actually drilled out the 6-48 scope mount action holes in a PTA to re thread to 8-40?
How hard is the stainless steel?
I've done this on other actions by setting the job up in my mill and using it as a jigbore to drill out the holes then put the tap in a mill collet chuck and hand feed the tap in to and fro small increments with lubrication to prevent breaking the tap.
A lot depends on how hard these actions are
Experienced comments appreciated
Thanks
Peter :D
Re: Drill & Tap PTA for 8-40 Screws?
Re: Drill & Tap PTA for 8-40 Screws?
Should I draw from your reply that the SS hardness of the PTA is significantly less than say 316 which is hard work on taps?
Re: Drill & Tap PTA for 8-40 Screws?
I have never tapped a savage action but with a quality tap and fluid it should be easy