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Thirteen gold oxide cobalt drill bits in a plastic case with size index

Olympia Tools Cobalt Drill Bit Set M35 HSS 13pcs 1/16-1/4

SKU CH-MZS1-7467E

13-piece M35 cobalt drill-bit set covers 1/16 to 1/4 inch with 135° split points for precise starts in hard metals

  • TypeBand Saw Blades
  • Size/Dimensions6
  • Compatibility/FitmentOut-Opening, Narrow Stile, Store Front Doors
  • Selling UnitSet
  • Color/FinishChrome
  • Item Count2 pack
  • M35 cobalt steel resists heat and wear when drilling hard metals
  • 135-degree split point self-centres for accurate starts without walking
  • Fully ground spiral flutes clear chips faster to reduce friction and heat
  • 13 jobber-length bits from 1/16 to 1/4 inch cover common sizes
  • Rose plastic case with size index keeps bits organised and protected

13-piece M35 cobalt drill bit set

This 13-piece set uses M35 high-speed steel with 5% cobalt for drilling hardened metal, stainless steel, cast iron, titanium alloy, hard plastics and wood. The range covers 1/16 inch through 1/4 inch in jobber lengths. It suits trade and workshop users who need heat-resistant bits for tough materials.

Rose plastic case with size index

The included holder organises every bit in a labelled layout so the correct diameter is found quickly. The case protects the cutting edges during transport and keeps the set complete on a busy bench. No separate storage is required.

M35 cobalt extends life in hard alloys

The 135-degree split point self-centres and reduces walking on stainless steel, cast iron and high-temperature alloys. Fully ground spiral flutes clear chips faster to lower friction and heat. The set stops at 1/4 inch, so larger diameters need a different kit.

Highlights

  • M35 cobalt steel resists heat and wear when drilling hard metals
  • 135-degree split point self-centres for accurate starts without walking
  • Fully ground spiral flutes clear chips faster to reduce friction and heat
  • 13 jobber-length bits from 1/16 to 1/4 inch cover common sizes
  • Rose plastic case with size index keeps bits organised and protected

Specifications

BrandOlympia Tools
TypeBand Saw Blades
Size/Dimensions6
Compatibility/FitmentOut-Opening, Narrow Stile, Store Front Doors
Selling UnitSet
Color/FinishChrome
Item Count2 pack
Part NumberLZ-DRILL-13

Questions about this item

Will the M35 cobalt bits need resharpening after drilling stainless steel?

The 5 % cobalt M35 steel and 135 ° split point resist wear, so resharpening is needed far less often than with standard HSS bits.

What stops the 1/16″ bit from snapping during deep holes?

The jobber length and fully ground spiral flutes clear chips fast, reducing torque buildup that breaks small diameters.

Does the gold-oxide finish stay cool when the set runs all day in cast iron?

The finish lowers friction and the cobalt alloy handles heat, keeping temperatures lower during extended drilling sessions.

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