drill bit 1.Electric Hammer Drill Bit; 2.Degree:118 and 135 3.Mainly used For cutting thick steel and Stainless steel left hand drill bits :1.Description:Drill Bit, HSS Drill Bit 2.Material:HSS ,HSS Cobalt ,40Cr,M2,M423.Degree:118 and 135 4.Used for drilling metal drill bits