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Cobalt jobber drill bit 10.20 mm straw bronze finish split point 135 degree angle

Chicago-Latrobe

Chicago-Latrobe 10.20 mm Cobalt Jobber Drill 47911

SKU CH-11K4-7WMV7

Cobalt jobber drill bit, 10.20 mm diameter, 135-degree split point for self-centering starts

  • Product typeDrill Accessories
  • Main materialHAWA
  • 135-degree split point starts on contact
  • Cobalt steel resists heat and wear
  • 20 mm metric diameter for exact fit
  • .4016 decimal equivalent simplifies selection

10.20 mm Cobalt Jobber Drill Bit

This Chicago-Latrobe jobber drill bit measures 10.20 mm in diameter and is manufactured from cobalt steel for extended wear resistance. It suits machinists and maintenance technicians drilling into tough alloys or stainless steel. The split-point geometry reduces walking at the start of the cut.

135-degree split point with .4016 decimal equivalent

The 135-degree split point centres quickly without a centre punch and the .4016 decimal equivalent simplifies imperial-tool selection. It is not designed for coolant-through applications or for materials requiring specialised coating technologies. Buyers needing internal coolant feed or alternative substrate grades should consider other options.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 88% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameChicago-Latrobe
Product typeDrill Accessories
Size & build
Main materialHAWA

Questions about this item

How does the 10.20 mm diameter translate when drilling in a workshop?

The 10.20 mm diameter matches a 0.4016 inch decimal equivalent, letting you drill precise metric holes without converting between systems.

What does the 135-degree split point do for the bit's performance?

The 135-degree split point reduces walking on hard materials and centres the bit instantly, so you start the hole exactly where you marked it.

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