Straight bits required to cut pins for through Dovetail using the Leigh jig, #45270, diameter (D): 5/16, cutting Height (B): 1.03, shank (D): 1/4, overall length (L): 2-13/16, type: Leigh #140, flutes: 2, 45270 carbide Tipped Leigh straight plunge 5/16 dia x 1.03 x 1/4 inch Shank