Redmist220
Plastic
- Joined
- May 30, 2006
- Location
- San Diego, California
A friend has asked me to install a Marbles tang sight on his Rossi Mod. 92. After setting it up in the mill I find the tang is too hard to drill with conventional drills Carbide seems to be in order. I contacted Brownell's tech dept for some advice and they suggested grinding down through the case hardening (about 6-7 thou)and starting the drilling from there. Problem is once I get through the case hardening, how is the steel below? Will a new conventional tap (10-32)suffice or should I try to find a carbide tap? I don't want to botch the job, so if someone has done what I'm attempting and will follow up I would appreciate it.
Thanks
Thanks