best broach cutters. we offer both tct and hss broach cutters. we offer premium performance annular tct and hss broach cutters. highest quality broach cutters manufactured using the best technology in the world. most efficient and cost effective drilling solution. our cutters have universal shank, so they can be used with any magnetic based drilling machine. optimus cutters are designed for optimum efficincy and accuracy. available from 12mm diameter to 150mm diameter. lenghts available