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Cobalt Twist Drills 3/32" Shank .50mm-2.30mm - Otto Frei
Otto Frei

Cobalt Twist Drills 3/32" Shank .50mm-2.30mm

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$7.35
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Description

These Cobalt Steel Twist Drills offer longer tool life than standard high speed steel, making them ideal for repeated drilling in both hard and soft metals. Harder and more wear-resistant than HSS, cobalt steel performs especially well in nickel-based white golds, stainless steels, and other tough alloys. Mounted on 3/32" (2.35 mm) shanks, they allow fast, convenient changes in fixed collet and quick change handpieces commonly used in jewelry work.

Features

  • Cobalt steel construction for extended tool life compared to HSS
  • Excellent performance in nickel-based white golds and stainless steels
  • Long service life when drilling yellow gold, silver, brass, and copper
  • Mounted on 3/32 in (2.35 mm) shanks for quick tool changes
  • Compatible with fixed collet and quick change handpieces
  • Sold individually by the piece

Specifications

Material Cobalt Steel
Shank Diameter 3/32 in (2.35 mm)
Size Range 0.50–2.30 mm
Sales Unit Each
Application Drilling Precious and Hard Metals

Available Options

Part # Drill Size
128.705 0.50 mm
128.706 0.60 mm
128.707 0.70 mm
128.708 0.80 mm
128.709 0.90 mm
128.710 1.00 mm
128.711 1.10 mm
128.712 1.20 mm
128.713 1.30 mm
128.714 1.40 mm
128.715 1.50 mm
128.716 1.60 mm
128.717 1.70 mm
128.718 1.80 mm
128.719 1.90 mm
128.720 2.00 mm
128.721 2.10 mm
128.722 2.20 mm
128.723 2.30 mm

Notes

  • Use appropriate speeds and lubrication when drilling harder alloys to maximize tool life.
  • Because cobalt steel is harder and more brittle than HSS, apply steady pressure and avoid excessive side loading.
  • Need to buy several variants quickly? Open the Quick Order tab and add everything in one go.

Specifications

Brand
Otto Frei
Part #
Varies by drill size
Type
Drills
Dimensions
3.5 in x 2 in x 0.5 in
Material
Cobalt Steel
Shank Diameter
3/32 in (2.35 mm)
Size Range
0.50–2.30 mm
Sales Unit
Each
Application
Drilling Precious and Hard Metals
California Prop 65 Warning California Prop 65 Warning:
This product can expose you to cobalt, which is known to cause cancer. www.P65warnings.ca.gov.

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