High Hardness Deep Hole Solid Carbide Twist Drill Bit 16mm With Internal Coolant

The solid hard alloy internally cooled rotary drill bit D16 × L160 × D16 × L220 launched by AMG company is a high-performance drilling tool designed for deep hole machining that requires high depth, high precision, and high efficiency. The drill bit is made of ultra-fine solid hard alloy (HM), which has excellent wear resistance, thermal stability, and fracture resistance.

The optimized spiral groove geometry structure combined with two internal cooling channels significantly improves chip removal efficiency, reduces cutting temperature, and enhances hole position accuracy.

These features help reduce tool replacement frequency, improve processing quality, minimize downtime, and ultimately lower production costs while increasing capacity.

This drill is suitable for deep hole machining in materials such as steel, stainless steel, titanium alloys, and alloy steels. It is widely used for aerospace structural components, engine housings, heavy industrial parts, and mold cooling channels — especially where high hole straightness and concentricity are required.

This twist drill features a stable spiral flute design that effectively guides chips out of the cutting zone, preventing clogging. The dual internal coolant system delivers high-pressure coolant directly to the cutting edge, improving cooling efficiency and reducing heat-induced wear. The drill's high-rigidity structure ensures excellent hole precision and straightness even under high-load drilling conditions.

• OEM & ODM available: free logo engraving and custom label service
• On-time delivery and reliable lead times
• Factory-direct pricing with guaranteed quality