5PCS METRIC HSS COBALT MULTIPLE HOLE 50 MM Sizes STEP DRILL BIT SET w/ Case

5 Pc Step drill bit set with case Metric size High speed steel with cobalt coated Two flutes automatically deburrs as you drill Tri-flat shank for sure grip Aluminum lightweight storage case included 5 Pc Metric Size Includes: 1 Pc 1/4" Shank Step Bit (5 Steps from 4mm to 12mm) (4mm, 6mm, 8mm, 10mm, 12mm) 1 Pc 1/4" Shank Step Bit (9 Steps from 4mm to 12mm) (4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm) 1 Pc 3/8" Shank Step Bit (7 Steps from 6mm to 18mm) (6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm) 1 Pc 3/8" Shank Step Bit (10 Steps from 4mm-22mm) (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm) 1 Pc 3/8" Shank Step Bit (13 Steps from 6mm to 35mm) (6mm, 8mm, 10mm, 13mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 30mm, 32mm, 35mm)