Description
★ 4 Broaches size include: 4mm B1, 5mmB1, 6mm C, 8mmC..★ 13 Ferrule Bushings: B1-12, 14, 15, 16, C-18, 19, 20, 22, 24, 25, 26 28, 30..★ Sized and proportioned to afford a good cutting range and ample rigidity. 4 broaches and 13 bushings = 26 keyway combinations..★ Specialty tools designed for cutting keyways in machined holes..★ It is widely used for punching, machining of machine accessories, perfect parts for stamping machine.