Rocky Mountain Twist 3G-OTH-195618 — Technical Specifications

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #12 is a cobalt threaded-shank drill bit with a 0.1890-inch diameter and a 1/4"-28 thread size. It features a 2-1/8" overall length, black oxide cobalt construction, and meets NAS 965 Type D specifications.