Cobalt Step Drill (12 Steps) Holes:3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", & 7/8" Cobalt Steel cuts stainless steel & heavy gauge metals DRILL BIT - MULTI STEP - COBALT3/16" - 7/8" (12 Steps) M35 Cobalt Drill (ea) Quantity in Basket: None Code: HMB31678COB Price: $51.51 Quantity: