Woodruff Key Seat Cutter, type: Staggered Teeth, Nominal Diameter: 3/4", Width of Face: 5/32", O.A.L.: 2-5/32", Shank Diameter: 1/2", American Standard #506. For cutting Standard and woodruff keyways in steel and other ferrous materials.
*Photos are for general reference of product. The photos are not specific to each size