15 drill sizes: (5/16, 3/8, 7/16, 1/2, 9/16), (9/16, 5/8, 11/16, 3/4, 13/16), (13/16, 7/8, 15/16, 1, 1-1/16).
Heavy duty hybrid of a step drill and maintenance reamer.
Enlarge and align holes up to 1/2 in. Thick.
Cut steel, stainless steel, and tough alloys.
Sharp 2 flute design for fast, smooth, bur-free holes.
1/2 in. Flatted shank for use in power drills and drill presses.
Safety collar prevents over-penetration.
90° drill point for drilling new holes using a drill press.
Ideal for steel fabrication, construction, mro, and automotive work.