Irwin UNIBIT Cobalt Inch Self-Starting 13 Hole Step Drill, Size 1/8" to 1/2" by 1/32nds - 01-906-071

Brand:   None
SKU:
01-906-071
ID:
215849
Shank Dia. 1/4"
Step Thickness 1/8"
$41.36
Current Stock:
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 Irwin UNIBIT Cobalt Inch Self-Starting 13 Hole Step Drill, Size 1/8" to 1/2" by 1/32nds - 01-906-071

  • Up to 13 different hole sizes without changing bits
  • Applications:
  • Specialty step drill designed to machine a large number of different hole diameters with a single tool.
  • Single cutting edge creates perfectly round holes in metal, plastic, and wood without center punching.
  • For use with thin materials.
  • Two general variations are available for either self-starting holes or for enlarging existing holes.
  • Single flute design helps to ensure perfectly round holes in a wide range of ferrous, non-ferrous and non-metallic materials.

Features:

  • Right hand (clockwise rotation) cutting direction.
  • Multi-step design with progressively larger holes.
  • Self-starting or hole enlarging styles.
  • Straight shank diameters of 1/4", 3/8" or 1/2" (6.5mm, 10mm, or 13mm).
  • Single Flute.
  • Conical design permits as many as 13 different size holes to be drilled with one drill.
  • These drills, depending on the model, have a step 1/8" to 3/8" (3.5mm to 11mm) thick between sizes.
  • 20 different models are available to produces holes from 1/8" to 1-3/8" or 4mm to 35mm.
  • The hardened, high speed steel drill body is available in either an uncoated style or with a TiN coating for longer life in tougher materials.

Cobalt

  • M35 grade provides high heat & abrasion resistance.
  • Longest cutting life.
  • 6 times longer life vs. competition. 

For More Irwin UNIBIT High Speed Steel & M35 Cobalt Step Drills & Sets Click Here

Irwin UNIBIT Cobalt Inch Self-Starting 13 Hole Step Drill, Size 1/8" to 1/2" by 1/32nds - 01-906-071

Irwin UNIBIT Cobalt Inch Self-Starting 13 Hole Step Drill, Size 1/8" to 1/2" by …

Irwin UNIBIT Cobalt Inch Self-Starting 13 Hole Step Drill, S…

$41.36