Irwin Marples 10503430 MS500 6-Piece Bevel-Edge Wood Chisel Set + Premium Storage Case This set of 6 Marples MS500 Series ProTouch™ All-Purpose Chisels contains the following sizes: 6, 10, 13, 19, 25 and 32mm (1/4, 3/8, 1/2, 3/4, 1 and 1.1/4 in). Supplied in a wooden box. The IRWIN Marples MS500 Series All-Purpose Chisels with ProTouch™ Handle. These chisels have a large metal striking cap to withstand hammer impacts, prolong the life of the handle and prevent mushrooming. ProTouch™ handles are designed to provide an extra comfortable grip and also reduce vibrations and hand fatigue. One-piece blade forging gives added strength and durability. Made from special tool steel which ensures a much sharper cutting edge for quicker and easier operation. A special hardening process gives.