40CR+ CARBON STEEL: Extension rod is made of 40Cr, effectively suppressing vibration, high concentricity, stable processing
INTEGRAL MOLDING: The inside and outside are integrated, with fine control processing, more stable performance
GROUNDED INNER HOLE: After the inner hole is ground, suitable for high accuracy machine tools and has longer life than ordinary tool holders
HIGHER HARDNESS: Using carburizing and quenching process, higher hardness, stronger interface fatigue resistance, and more
STRAIGHT EXTENSION ROD: Processing extension rods that allow you to work better, more efficiently, and more , a good substitute
