Made from high-performance powder metallurgy high-speed steel
Super red hardness, toughness and wear resistance
Longer lifespan
Ideal for drilling steel railtracks
Suitable for all kinds of steel rail drilling machines.
Specially designed cutting edge geometry for better endurance
Φ19.0mm and Φ19.05mm weldon shank for fast exchanging and higher torque
Cutting depth: 25mm & 50mm