This bit is designed specifically for use for the karran stainless steel edgesinks for laminate and 1/2" Solid surface materials. They trim The counter-top edge after the bowl is mounted, #57163, diameter (D): 2-3/8, angle (a°): 45°, cutting height (B): 13/16, shank (D): 1/2, overall length (L): 2-7/8, flutes: 2, a: 1/2 or 3/4, 57163 carbide Tipped lansen stainless steel edge sinks 45 deg bevel solid surface 2-3/8 dia x 13/16 x 1/2 inch shank router bit