Accepts drills* from 1/4" Through 13/32" (Wood screw sizes #2 through #18)., #20206, (B) Cutting height 5/8, (D) diameter 27/32-1, (D) shank 1/4-13/32, overall length (L) 1-5/16, drill DIN 338, replacement drill 630-702, 20206 carbide Tipped adjustable 27/32-1 DIA x 5/8 cut depth x 1/4-13/32 inch shank