Drop forged, hardened and tempered. Sizes: 110mm (5 x 50, 6 x 50, 8 x 50), 160mm (6 x 100, 8 x 100, 10 x 100, 12 x 100, 210mm (8 x 50). Compatible with power drills fitted with an SDS or SDS+ chuck. Supplied in storage case.