Rocky Mountain Twist 3G-OTH-195537 — Technical Specifications

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter B is a cobalt threaded-shank drill bit with a 0.2380-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and conforms to NAS 965 Type D specification, with an overall length of 2-1/8 inches (MPN 953COBLS).