These bits prepare and/or finish counter-top edges in conjunction with undermount bowl installations. The round over and Ogee bits trim and profile The counter-top edges after the bowl is mounted. The bevel bit trims the sink cut-out flush with an installed undermount bowl, but it also can be used with a template to prepare a sink cut-out for a bevel-mount bowl. All these tools can be used for undermount applications of Corian sink and bowl #'s 802s, 804s, 805s, 809s, and 871s, #57122, diameter (D): 1-1/4, angle (a): 11.5, cutting height (B): 15/16, shank (D): 1/2, overall length (L): 3, type: bevel, replacement bearing: 47726, flutes: 2, a: 1/2 & 3/4, 57122 carbide Tipped undermount bowl Solid surface 1-1/4 inch dia X 15/16 x 10 Deg x 1/2 shank