Ultra-Max Hammer Drill Bit 6 Cutters compatible SDS-max, with massive carbide head technology(Ceratizit-made carbide cutters), High performance for drilling hard concrete and reinforced concrete, rough stone. Hammer drill level higher than 5KGS to use this series of SDS-max hammer drill bits.

HSS Step Drill Bit upon the high techonology craftsmanship to get the best sharpness and durability for various diameter drilling in 1pc drill bit.

The blade adopts a diamond particle alloy formula and is fixed on a thickened alloy steel substrate through laser welding technology. It has high hardness and strong wear resis- tance, and can repeatedly cut hard materials such as concrete, cement, and stone. The unique Alternative-direction double/three piece combination structure is to cut into standard groove shapes in one go, with smooth groove walls, reducing the need for later finishing processes and greatly improving construction efficiency. The substrate is equipped with heat dissipation grooves and chip discharge holes, which can effectively cool down and remove slag during dry cutting, reducing the risk of edge breakage and deformation.