PRODUCT DETAILS: 5 PC Step Bit Set, Metric High Speed Steel, Polished "Contains: 6mm shank: 4 to 12 mm, 9 steps(4, 5, 6, 7, 8, 9, 10, 11, 12mm), 4 to 12 mm, 5 steps(4, 6, 8, 10, 12mm) 8mm shank: 6 to 18 mm, 7 steps(6, 8, 10, 12, 14, 16, 18 mm) 4 to 22 mm, 10 steps(4,6,8,10,12,14,16,18, 20, 22mm) 10mm Shank: 6 to 35 mm, 13 steps(6, 8, 10, 13, 16, 18, 20, 22, 25, 28, 30, 32, 35 mm)" Two Flutes, Automatically deburrs as you drill Tri-Flat shanks for sure grip Aluminum Carrying Case for easy Storage

• 5pc Bit Step Metric 6mm 8mm 10mm Shanks High Speed Steel w/ Cobalt Coating

5pc Bit Step Metric 6mm 8mm 10mm Shanks High Speed Steel w/ Cobalt CoatingTripple3Vee