Woodtek 958007, Router Bits, Molding, Crown, 2-3/4" Cove Pattern Crown Molding Bit, 1/2" Shank Mill your own cove and crown molding. Specifications: "D"=2-3/4 in, "H"=5/8 in, "h"=3/8 in Specifications: "d"=1/2 in, "OAL"=2-3/8 in, "R"=2-23/32 in