Roughneck Cold Chisels are manufactured from drop forged, heat treated steel for strength and durability. They feature powder coated with polished tips for greater corrosion resistance. Supplied with tip protectors. Roughneck Cold Chisel 3 Piece Set, made from drop-forged steel, heat-treated and tempered. Have a black powder-coated finish. This 3 Piece Set Contains 1 x 200 x 16mm (8 x 5/8in). 1 x 250 x 19mm (10 x 3/4in). 1 x 300 x 25mm (12 x 11in).