Whiteside 6708A 3-Wing Slotting Cutter. A 3-wing carbide tipped Slotting Cutter used for running slots for panels, splines, and t-moldings, and for cutting tongue and groove joints. The Cutters are 1-7/8" in diameter with a 5/16" bore. The matching Arbors (sold separately) have a shaft length of 7/8" and come with a B5 bearing (allows a 1/2" depth of cut). Other cutting depths can be achieved by switching the bearing with other sizes (Sold separately. Listed below): B20 - 9/16" depth of cut B25 - 3/8" depth of cut B26 - 1/4" depth of cut B27 - 5/8" depth of cut Cutters and arbors sold separately. Whiteside Machine Company - Claremont, North Carolina. Arbor Specifications DIAM = Cutter Diameter AB = Arbor Bore. CW = Cutting Width 1-7/8" DIAM x 5/16" AB x 5/32" (.156") CW Model: 6708A