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Cleveland #29 parabolic cobalt drill bit with gold TiAlN coating

Cleveland

Cleveland C15119 #29 Parabolic TiAlN Cobalt Drill Bit

SKU CH-9045-9YE9A

A #29 screw-machine drill bit with 135-degree split point, 8% cobalt HSS and TiAlN coating

  • Product typeDrill Bits
  • Main materialHAWA
  • Cobalt alloy with 8% cobalt resists heat in hard metals
  • TiAlN coating reduces friction and extends cutting life
  • 135-degree split point starts on contact without wandering
  • #29 size gives a precise 0.1360-inch hole diameter
  • Parabolic flute design clears chips efficiently in deep holes

Cleveland C15119 Cobalt Drill Bit

The Cleveland C15119 is a screw-machine drill bit made from HSS-CO 8% (M42) cobalt steel with a titanium aluminium nitride coating. It targets machinists and maintenance technicians who need a durable tool for drilling abrasive or heat-resistant alloys in production or repair environments.

Parabolic flute geometry and 135 degree split point

The parabolic flute design improves chip evacuation in deeper holes, while the 135 degree split point reduces walking and lowers thrust requirements. The TiAlN coating raises surface hardness and heat resistance, yet the bit is not coolant-through, so external lubrication or peck cycles are necessary when drilling materials that generate high cutting temperatures.

Right-hand cutting with standard shank

Installation is straightforward: the right-hand cutting direction matches conventional drill chucks and collets, and the #29 decimal equivalent of .1360 inch fits standard toolholders without adapters. Common issues arise when operators run excessive speed without coolant, causing premature coating wear, or when the split point is not re-sharpened correctly, which restores walking on subsequent holes.

How it compares

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

Price $10.99
Cheaper than about 86% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND
Product typeDrill Bits
Size & build
Main materialHAWA

Questions about this item

Should I choose the #29 size or a different drill bit size?

The #29 size has a decimal equivalent of .1360 inches, so select it when your project requires that specific hole diameter.

What does the 135-degree split point do when the bit is in the drill?

The 135-degree split point reduces walking and starts the hole accurately without a centre punch.

How does the TiAlN coating on this cobalt bit affect cutting performance?

The TiAlN coating increases surface hardness and heat resistance, allowing faster speeds and longer life in tough materials.

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