Rocky Mountain Twist 3G-OTH-192838 — Technical Specifications

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #18 is a high-speed steel threaded-shank drill bit with a 0.1695-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 953HS18SS.