For cutting standard and woodruff keyways in steel and other ferrous materials. Set has one each American standard sizes -- 403, 204, 404, 305, 505, 406, 606, 806, 608 and 808. Straight or staggered teeth.
Warning:This product may expose you to chemicals including Cobalt, a chemical known to the State of California to cause Cancer. For more information go to www.P65Warnings.ca.gov