1Pcs M35 Cobalt Step Drill 4-12/4-20/4-22/5-21/5-27mm TiAIN Drill Bit Spiral Groove Quick Change Shank for Stainless Steel(5-21mm(9 Steps))

Welcome to my store！Drill BitsFeatures:HSS-CO M35 Spiral grooved Step TiAIN Drill Bits Cut Tool Set.TIALN PLATING to reduce mit and run cooler.Automatically deburr holes as you drill.Widely used to cut holes in a variety of material like stainless steel tapping steel, wood, thin iron, aluminum alloy, PVC sheet, ect.Step Sizes:4-12mm: 5 steps (4mm, 6mm, 8mm, 10mm, 12mm)4-12mm: 9 steps (4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm)4-20mm: 9 steps (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm)4-22mm: 10 steps (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm)5-21mm: 9 steps (5mm,7mm, 9mm, 11mm, 13mm, 15mm, 17mm, 19mm, 21mm)5-27mm: 12 steps (5mm,7mm, 9mm, 11mm, 13mm, 15mm, 17mm, 19mm, 21mm, 23mm, 25mm, 27mm)

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