Type 117 Centre punches are manufactured from specially selected steel, hardened and properly tempered. They are well proportioned, nicely finished and have a knurled finger grip. The points are ground at the proper angle to give maximum service, and the tips are accurately centered. Length 100mm (4in). Set of all sizes 1.5mm (1/16 in), 2mm (5/64 in), 2.5mm (3/32 in), 3mm (1/8 in) and 4mm (5/32 in).