Tungsten Carbide Twist Drill Bit | High Precision CNC Drilling Tool

Tungsten carbide twist drill bits are premium hole-making tools engineered for high-speed CNC machining, widely used for stainless steel, alloy steel, cast iron and hardened metal workpieces.

Core Advantages Made of high-density tungsten carbide substrate, the drill delivers outstanding hardness and thermal stability. Compared with HSS bits, it features 5–10 times longer service life, supports high-speed cutting, lowers downtime and production costs. Optimized spiral flutes ensure smooth chip evacuation, reducing workpiece scratching and tool breakage.

Key Features & Technical Parameters Point angle: 135° split point for self-centering Straight cylindrical shank; diameter range: 1.0–20 mm Optional TiAlN/TiCN coating for extra wear resistance Tolerance: h6 precision; available in 3D/5D length versions Optional internal coolant holes for deep-hole drilling