Rocky Mountain Twist 3G-OTH-192771 — Technical Specifications

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 5/16" is a high-speed steel threaded-shank drill bit with a 5/16" (0.3125) diameter and a 5/8" overall length. It features a 1/4"-28 thread size and meets NAS 965 Type B specifications, with a black oxide finish on HSS construction.