Rocky Mountain Twist 3G-OTH-195588 — Technical Specifications

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #19 is a cobalt threaded-shank drill bit with a 0.1660-inch diameter and a 1/4"-28 thread size. It meets NAS 965 Type D specifications and has a 9/16-inch overall length with a black oxide finish.