The BRDE gas block drilling jig RA PRO is used to drill, Rainier Arms and Superlative Arms 0.750" bore gas blocks for pinning.
Cold rolled carbon steel
Waterjet and hand fit opening
Manganese Phosphate finish
#31 drill hardened drill bushing
Includes 1/4"-28tpi x 3/8" soft point set screw
Includes one #31 jobber drill bit and 1/8" hex key