1.Description:SDS Plus Hammer Drill Bits 2.Carbide: YG8C 3.Body:40Cr 4.Shank:SDS Plus,SDS Max,Hex 5.Type: "-" & "+" 1.Description:SDS Plus Hammer Drill Bits2.Carbide: YG8C3.Body:40Cr4.Shank:SDS Plus,SDS Max,Hex5.Type: "-" & "+"6.Flute: S2 and S47.Finishing:Sand-blast, Nature color,Black finished CONCRETE DRILL BITS