Amana Tool MR0108 Chamfer with Mini Ball Bearing Guide 9/16-Inch Diameter, 45-Degree Angle, 1/4-Inch Shank Carbide Tipped Router Bit Amana Tool exclusive chamfer miniature bit 45-Degree Angle, 9/16-Inch Cutting Diameter 1/4-Inch Cutting Height, 1-7/8-Inch Length 1/4-Inch Shank, 2 Flute Carbide Tipped, Industrial Quality