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BCM
Durkin Tactical Franklin Armory
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Posted: 1/7/2014 10:56:53 AM EDT
I threaded my saiga barrel and now wanting to drill the FSB to install the detent and spring I got for the muzzle device. Wondering if anyone who has done this found the metal to be extremely tough and how they did it. My drill bits are barely making any dent. Thanks for any help.
Link Posted: 1/7/2014 11:10:35 AM EDT
[#1]
Sounds like your bits aren't sharp enough. I've drilled quite a few FSB's for detent pins and I've never had an issue when using sharp bits.
Link Posted: 1/7/2014 1:50:31 PM EDT
[#2]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Sounds like your bits aren't sharp enough. I've drill quite a few FSB's for detent pins and I've had an issue when using sharp bits.
View Quote

New bit, but maybe I'll go pickup a better quality brand.
Link Posted: 1/8/2014 10:42:42 AM EDT
[#3]
Also use a drilling fluid like "Do-Drill".  Any hardware store will have tapping and drilling fluid for a couple of bucks.
Link Posted: 1/27/2014 4:46:23 PM EDT
[#4]
they are hard.  I use a 5/32 carbide end mill, but you can probably use a cobalt drill bit.  HSS, probably not.  In hard metal, slow RPMs tend to cut better than high RPMs, which just heat up and kill the bit.
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