The CMT 859.064.11 is a 1-1/2-Inch 2-Flute Standard Ogee Router Bit. Series 859 bits can be converted to series 860 by changing the bearing to 3/8”. Important: always assemble the black bearing heat shield with the raised side up when changing the bearing. Improper assembly will cause the screw to come loose and the bearing to fall off when working. Features: * 1/4-Inch shank * 5/32-Inch radius What"s In the Box: * CMT 859.064.11 1-1/2-Inch 2-Flute Standard Ogee Router Bit