General description Roughneck Chisel & Bolster Set includes three essential tools made from durable drop-forged steel, which is heat-treated and tempered for enhanced strength and longevity. Each tool features a black powder-coated finish for added protection against wear and corrosion. Technical specifications Cold Chisel: 254 x 25mm (10in x 1in) Brick Bolster: 216 x 70mm (8.5in x 2.75in) Electrician's Chisel: 254 x 76mm (10in x 3in)