1Pcs Cobalt Step Drill Bits HSSCO M35 TiAIN Spiral Straight Grooved Hex Quick Change Shank Stainless Steel Hole Cutter(TiAIN Type 3,5-27mm(12 Steps))

Gun Drill Bits
【See the second picture of the variant for detailed parameters】
【See the second picture of the variant for detailed parameters】
Cobalt Step Drill Bits HSSCO M35 TiAIN Spiral Straight Grooved
Step Sizes:
3-14mm: 12 steps (3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm)
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)
Type 2(Shank: Straight-Round, Flute: Spiral)
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)
5-27mm: 12 steps (5mm,7mm, 9mm, 11mm, 13mm, 15mm, 17mm, 19mm, 21mm, 23mm, 25mm, 27mm)
Type 3(Shank: Hex-Dual R, Flute: Spiral)
Step Sizes:
3-13mm: 11 steps (3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm)
6-25mm: 10 steps (6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm)
6-35mm: 13 steps (6mm, 8mm, 10mm, 12mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 30mm, 32mm, 35mm)
Type 4(Shank: Straight-Round, Flute: Straight)
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)
5-35mm: 13 steps (5mm, 7.5mm, 10mm, 13mm, 16mm, 19mm, 21mm, 23mm, 26mm, 29mm, 31mm, 33mm, 35mm)