ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 3/8", 1-1/4" Overall Lg

This drill bit is designed for precision drilling in metal and composite materials, commonly used in aerospace and industrial manufacturing. Its threaded shank (1/4"-28) allows secure mounting in tool holders, reducing slippage during high-torque operations. The black oxide HSS construction provides heat resistance and extended tool life.

The ROCKY MOUNTAIN TWIST 953HS3/8SS is a high-speed steel drill bit with a 3/8" (0.3750") diameter, 1/4"-28 threaded shank, and 1-1/4" overall length. It features a black oxide finish and conforms to NAS 965 Type B standards, ensuring compatibility with aerospace-grade tooling systems.

3G Electric supplies ROCKY MOUNTAIN TWIST drill bits worldwide, handling full logistics, customs clearance, and delivery to your facility. As a global industrial equipment distributor since 1990, we source genuine OEM parts like the 953HS3/8SS and manage international shipping. Contact us for availability and lead times.

Select a drill bit that matches your tool holder's thread size (e.g., 1/4"-28) and meets NAS 965 Type B specifications for aerospace use. Ensure the diameter (e.g., 3/8") suits your hole tolerance, and choose black oxide HSS for heat resistance. ROCKY MOUNTAIN TWIST bits are designed for these requirements.