CMT 855.805.11 Window Sill Bit with 3/8 to 1/2-Inch Radius, 1/2-Inch Shank 1-1/2-Inch Diameter, 1-3/8-Inch Cutting Length, 3-25/64-Inch Overall Length 2 Hi-Density carbide-tipped cutting edges for long-lasting performance on wood Anti-kickback design to control the depth of cut and work safely For shaping the edges of window sills Also intended for creating finger pulls on the edges of doors and drawers