5 piece Hollow Square Mortise Chisel set containing a variety of different sized bits Hollow Square Mortise Chisels combine a four sided chisel with a drill bit in the centre. This 5 piece set from Draper is designed to ensure the edges are straight and clean when cutting. It contains a variety of sizes for multiple purposes. Features: Manufactured from high carbon steel hardened and tempered Finely ground and polished with honed cutting edges Supplied in a wooden presentation box Contains: 1 x 1/4\" mortice square 1 x 5/16\" mortice square 1 x 3/8\" mortice square 1 x 1/2\" mortice square 1 x 5/8\" mortice square Specification: Pack Qty: 5 piece