Features:
100% brand new and high quality.
HSS-CO M35 Spiral grooved Step Drill Bits Cut Tool Set.
COBALT 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, moisture boards, PVC sheet, ect.

Step Sizes:
3-12mm: 9 steps (3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 12mm)
3-14mm: 12 steps (3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm)
4-26mm: 12 steps (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm)
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)
6-24mm: 11 steps (6mm, 8mm, 10mm, 12mm, 13mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm)

Package Included:
1pcs Step Drill