GREENER Hexagonal Shank Drill Bit Twist Drill for Stainless Steel, High Hardness Drilling Set with Cobalt, 3/4/5/6/8mm

Sharp and durable, capable of punching 2000 holes continuously

Features enlarged U-shaped chip removal slot to prevent chip accumulation and ensure smooth chip removal during high-speed operation

Screw 1 and Screw 2 for increased chip removal speed during high-speed operation

High hardness and wear resistance for effortless drilling through thick steel plates

135° drill head for faster and neater drilling

Suitable for a wide range of materials including stainless steel, mold steel, cast iron, aluminum alloy, copper plate, iron, and wood

Suitable for both household and industrial use