Woodtek 921362, Router Bits, Dovetail, 70 Dovetail Bit For Leigh, 1/4" Shank Identified by the leigh number, you have many dovetail options. Specifications: "D"=3/8 in, "H"=1/2 in, "A"=8 deg Specifications: "d"=1/4 in, "OAL"=2-1/4 in