Made of premium M2 High-Speed Steel and ground, the set comes complete with a plastic case holding all 8 center drills
Plain style 60° angle used for producing center holes in workpieces which require precision drilling or machining between centers. Also used as starter holes to prevent a drill bit from "walking"
Body Dia: 1/8, 3/16, 1/4, 5/16, 7/16, 1/2, 5/8, 3/4"
Drill Dia: 3/64, 5/64, 7/64, 1/8, 3/16, 7/32, 1/4, 5/16"