Arbors for Screw-On, Mortise Router Bits - (5/16 x 24 Thread) - Southeast Tool SEHMA-12-516; 1/2 Shank, 1 3/4 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