STANDARD SIZE: The hollow drill reamer has standard hole diameter and mounting hole size, with easy installation, stable operation and high accuracy.
CARBIDE MATERIAL: The concrete core drill bits is forged with cemented carbide, quenched at high temperature, with high hardness and strong impact resistance, not easy to break when cutting or drilling.
HIGH EFFICIENCY: The carbide hole saw has a incisive edge, hard and wear resistant, not easy to break when cutting, and has a fast drilling speed.
FINE WELDING: This granite drill bit have high frequency welding technology, the welding opening is very firm, with precise joint, smooth internal and external welding without gaps.
WIDE APPLICATION: The carbide hole saw is widely used for drilling holes in concrete, bricks, wall and stone, cutting and cleaning holes when installing air conditioners, etc.