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Thirteen cobalt drill bits in a metal case, bronze finish, 135-degree split-point tips

Olympia Tools 13PCS Cobalt Drill Bit Set 1/16-1/4 M35 HSS 135 Degree Tip

SKU CH-YBZ0-RA8YN

Thirteen cobalt-alloy jobber bits with 135-degree split points cover 1/16 to 1/4 inch in a metal index case

  • Fit and compatibilityOut-Opening, Narrow Stile, Store Front Doors
  • Product typeBand Saw Blades
  • Size or dimensions6
  • Main materialPlastic
  • Sold asSet
  • Number of items2 pack
  • Self-centring 135-degree split point eases penetration and cuts thrust
  • M35 cobalt alloy steel with bronze steam finish resists wear in hard metals
  • Thick web core design strengthens flute durability for longer bit life
  • 13-piece set covers 1/16 to 1/4 inch for broad drilling tasks
  • Metal storage case with size index keeps bits organised and protected

13-piece cobalt drill bit set

The Olympia Tools set contains thirteen M35 high-speed steel twist bits with a 5-percent cobalt alloy. A bronze steam surface treatment adds hardness and toughness for wear resistance. The 135-degree split-point tip is self-centring and reduces thrust for faster penetration. Bits range from 1/16 inch to 1/4 inch and come in a metal storage case with a size index.

Suitable for hard metals and general use

Machinists and maintenance technicians drilling stainless steel, cast iron, titanium alloy or high-temperature alloys will benefit from the cobalt construction. The bits also handle plastics and wood. Users who need diameters larger than 1/4 inch or a greater quantity of bits for production runs should look at a larger set.

M35 cobalt alloy with 135-degree split point

The 5-percent cobalt M35 steel and 135-degree split-point geometry determine whether this set matches the application. This combination delivers the heat resistance and self-centring start required for hard-metal drilling.

How it compares

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

Price $14.99
Cheaper than about 77% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameOlympia Tools
Part numberHSS-13PCS
Product typeBand Saw Blades
Size & build
Size or dimensions6
Main materialPlastic
Compatibility
Fit and compatibilityOut-Opening, Narrow Stile, Store Front Doors
In the box
Number of items2 pack

Questions about this item

Does the 135-degree split point tip reduce heat build-up when drilling stainless steel all day?

The self-centring 135-degree split point tip lowers thrust and speeds chip removal, which helps control heat during extended drilling in hard metals such as stainless steel and cast iron.

Will the round shank on these M35 cobalt bits fit my standard 1/4-inch drill chuck without an adapter?

Yes, each bit has a round shank that seats directly in a standard three-jaw drill chuck, so no extra adapter is needed for the 1/16 to 1/4 inch sizes supplied.

Can I mix these jobber-length cobalt bits with my older high-speed steel sets in the same metal index case?

The set includes a metal storage box with a size index that holds all 13 jobber-length bits, and the case will also accommodate older bits of the same diameters.

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