Radius the transition from horizontal counter-top surface to vertical backsplash with this bit. The cutting profile is a modified cove, having rounded corners separated by a flat. A shank-mounted ultra-glide bearing guides the cut. Use in a handheld router, #57232, diameter (D): 1-1/8, Radius (r): 3/8, cutting Height (B): 1/2, shank (D): 1/2, overall length (L): 2-7/8, replacement collar: 47740, replacement bearing: 47737, flutes: 2, 57232 carbide Tipped cove and backsplash with ultra-glide radius bearing guide solid surface 1-1/8 dia x 1/2 x 3/8 radius x 1/2 inch Shank