Woodtek 862998, 5-pack, Router Bits, Dovetail, 5/16" X 8 Degree C. Tipped Dovetail Bit 1/4" Shank Perfect for through, half-blind, and sliding dovetail joints. Specifications: "D"=5/16 in, "H"=11/32 in, "A"=8 deg Specifications: "d"=1/4 in, "OAL"=1-3/4 in