ALPEN 4,2mm Cobalt Drill Bit

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ALP901042 Alpen 4.2mm Cobalt Drill Bit

The 4,2mm Alpen Cobalt Drill Bit is ideal for drilling holes in handle scales of folding knives.

Use with the counterbores also available on this website.

Original price was: R88.00.Current price is: R84.00.

4 in stock

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SKU: ALP901042 Categories: ,

Description

5% cobalt-alloyed high-efficiency drills with reinforced web. Especially suitable for drilling stainless steel, acid-resisting steel, spring-steel. Best for hand held operations.

For drilling into:

  • Structural steels < 400 N/mm²
  • Free cutting steels < 850 N/mm²
  • Unalloyed heat treatable steels < 1.100 N/mm²
  • Alloyed heat treatable steels < 1.300 N/mm²
  • Stainless steels
  • Titanium and titanium alloys
  • Copper, brass, aluminium
  • Grey cast iron, malleable cast iron
  • Plastics

Specifications

Specifications
Description Qty Sample
Quantity in box 10 3,8 mm Ø Cobalt stub drill bits in BULK
Type HSS Cobalt PZ
Standard DIN 1897
Drilling depth 3 x d
Point angle 130°
Point grind Split point
Drill diameter 4,2 mm
Surface Bright
Drill material HSS-ECo
Length of twist 22 mm
Total length 55 mm

Additional information

Weight 0.01 kg

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