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Twelve cobalt drill bits in a case, silver finish, jobber length

Olympia Tools 13/64 inch Cobalt Drill Bits 12Pcs M35 HSS

SKU CH-ZVEM-KZPSA

A 12-piece set of 13/64 inch M35 cobalt drill bits with 135-degree split points for precise drilling in hard metals and other materials

  • Fit and compatibilityOut-Opening, Narrow Stile, Store Front Doors
  • Product typeBand Saw Blades
  • Main materialPlastic
  • Sold asSet
  • Number of items2 pack
  • 12-piece set provides multiple replacements for 13/64" drilling tasks
  • M35 cobalt steel with 5% cobalt resists wear in hard metals
  • 135° split point prevents walking and starts holes without centre punch
  • Fully ground flutes clear chips fast for cooler, faster cutting
  • Jobber length 94 mm total fits most standard power drills

12-Piece Cobalt Drill Bit Set

This Olympia Tools set contains twelve 13/64 inch cobalt drill bits made from M35 high-speed steel with five percent cobalt for wear resistance. Each bit measures 5.16 mm in diameter with a 63 mm flute length and 94 mm overall length. The 135-degree split point prevents walking and eliminates the need for a centre punch. A storage case keeps bits organised and identifiable.

Suited For Metalworkers And General Drilling

The bits handle stainless steel, cast iron, copper, aluminium, brass, plastic and wood, making them useful for workshop tasks that involve mixed materials. Builders who need a wide range of diameters in one package should look at a multi-size index instead. Users requiring carbide-tipped or coated bits for abrasive composites will need a different product.

135-Degree Split Point Geometry

The 135-degree split point with straight shank self-centres on contact and reduces thrust, giving faster, cooler drilling in hard metal up to 1100 degrees Fahrenheit. Dual flutes clear chips efficiently for sustained cutting speed. This geometry is the single feature that determines whether the set matches your precision and heat-control requirements.

How it compares

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

Price $19.99
Cheaper than about 64% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameOlympia Tools
Model nameHand Rivet Nut Setter Kit
Part numberUS10000000
Product typeBand Saw Blades
Size & build
Main materialPlastic
Compatibility
Fit and compatibilityOut-Opening, Narrow Stile, Store Front Doors
In the box
Number of items2 pack

Questions about this item

How do I install the 13/64 inch cobalt bit in my drill chuck and what step do people often miss?

Open the chuck wide, insert the straight shank fully, and tighten securely; the step many skip is verifying the 135° split point sits true before drilling so the bit self-centres without a centre punch.

What maintenance or replacement will the M35 cobalt bits need after repeated use?

The M35 high-speed steel with 5% cobalt resists wear up to 1100°F; when cutting edges dull, replace the bit — there is no sharpening service or coating to renew.

What limit appears first when drilling stainless steel continuously with these 63 mm flute-length bits?

Heat builds in the 63 mm flute length during sustained cuts; the 1100°F maximum working temperature is reached before the cobalt alloy loses hardness, so pause to cool the bit.

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