Klein Tools KTSB01 Step Drill Bit Double-Fluted #1, 1/8 To 1/2-Inch

These Double-Fluted Step Drill Bits provide faster cutting and drilling than single flute bits. The easy-to-read step markings and targets save time when drilling holes. Thick 3/8-Inch hex shank provides a firm, positive grip and won't spin out in the drill. Two flutes on this Step Drill Bit cut faster and keep bit cooler Fast-starting, non-walking drill tip High-visibility silver step targets for primary hole sizes Thick 3/8-Inch hex shank provides a firm, positive grip and won't spin out in the drill 13 hole sizes Made from high speed steel 1/32-Inch increments Additional Information Application:For Multi-Material Drilling Shank Type:Hex Flute Type:Straight Overall Length:4.77"" (12.1 cm) Material:High Speed Steel Quick Reference:#1 Number of Holes:13 Increment:1/32"" (0.8 mm) Size:1/8"" to 1/2"" (3.2 to 12.7 mm) Weight:0.80 oz (22.7 g)