ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #38, 1/2" Overall Lg, Black Oxide HSS

This drill bit is used for precision drilling in aerospace and industrial applications requiring threaded shank retention. Its NAS 965 Type B compliance suits high-tolerance metalworking, especially in confined spaces where a 1/2-inch overall length and 1/4-28 thread provide secure mounting in tool holders.

The ROCKY MOUNTAIN TWIST 953HS38ST is a #38 drill bit with a 0.1015-inch diameter, 1/4-28 threaded shank, and 1/2-inch overall length. It is made of black oxide high-speed steel and conforms to NAS 965 Type B. The black oxide finish reduces friction and improves wear resistance.

3G Electric supplies ROCKY MOUNTAIN TWIST threaded shank drill bits worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source the 953HS38ST or other NAS 965 Type B bits for your operations.

Select based on thread size (1/4-28 for this bit), diameter (#38 at 0.1015 inches), and overall length (1/2 inch). Ensure the shank matches your tool holder's thread. For aerospace work, verify NAS 965 Type B compliance. ROCKY MOUNTAIN TWIST bits are designed for high-speed steel durability in precision drilling.