Rocky Mountain Twist 3G-OTH-192852 — Technical Specifications

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #12 is a high-speed steel threaded-shank drill bit with a 0.1890-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and meets NAS 965 Type B specifications. The overall length is 1-1/4 inches, and the manufacturer part number is 953HS12SS.