Threaded Shank Drill Bits

Threaded Shank Drill Bits from Rocky Mountain Twist drill. Threaded shank drill bits are manufactured for the aerospace industry to NAS 965. Constructed from Industrial grade NAS steel, threaded shank drill are rugged, tough and feature split points as standard. Threaded shanks are used in hard to reach applications with handheld drilling tools. Available in 4 different length options.