Screw-On, Mortise Router Bits - 5/16 x 24 Thread), Carbide Tipped - Southeast Tool SE131250-516A; 1 1/4 Cutting diameter, 1/2 Cutting length, 5/8 Overall length.
*Please note that the above picture is a representation of the type of tool and may not accurately represent the actual size and dimensions.
WARNING: Cancer and Reproductive Harm—www.P65Warnings.ca.gov