Matework 1/4 inch cobalt countersink bit for precise chamfers in metal and wood.
Matework 3/8 inch cobalt countersink bit provides stable cuts and clean edges.
Matework 1/2 inch cobalt countersink bit for larger chamfers in metal and wood.
Matework 5/8 inch cobalt countersink bit with efficient debris removal.
Matework 3/4 inch cobalt countersink bit for extended reach and durability.
Matework quick-change hex shank enables fast bit swaps.
Matework laser-marked sizes help quick selection during projects.
Matework cobalt countersink metal-wood compatibility for versatile projects.

Matework

Matework M35 Cobalt Countersink Drill Bit Set – 6-Piece, 1/4" Quick-Change Hex Shank

High-performance tools and home improvement made for confident daily results

$42.72

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Why customers choose TaskHolt Tools

Premium performance for metal and wood projects

The Matework M35 cobalt countersink drill bit set is designed to deliver refined countersinks with consistent edge quality across demanding materials. The cobalt coating enhances durability and heat resistance, helping maintain clean chamfers even during extended use. This 6-piece set pairs tough construction with thoughtful design for reliable, repeatable results.

Durability and cutting efficiency

  • M35 cobalt HSS construction combined with a cobalt coating provides improved heat resistance and corrosion protection for tough tasks.
  • A five-flute design helps stabilize cutting, improves debris discharge, and extends blade life for repetitive jobs.

Versatility and size options

  • Includes 1/4", 3/8", 1/2", 5/8", 3/4" and a special 5/16" size to cover common countersinking needs.
  • Suitable for stainless steel, carbon steel, iron, copper, aluminum, and wood, among others.

Ease of use and precision

  • Laser-engraved step sizes offer visibility and durability, helping you select the right diameter at a glance.
  • 1/4 inch quick-change hex shank enables fast bit swaps, reducing downtime between tasks.

What’s in the box and care tips

  • Six precision countersink bits with consistent tolerances for reliable performance.
  • Store in a dry environment and clear chips after use to maintain cutting efficiency. Contact support for replacements if needed.

Note: While the design supports strong, repeatable results, actual performance will depend on material, feed rate, and tool setup. This information is provided to help you evaluate fit for your specific projects.

FAQ

Q: What sizes are included in the Matework Countersink Drill Bit Set?

A: The set includes 1/4, 3/8, 1/2, 5/8, 3/4 and a 5/16 special size.

Q: What materials can these bits drill?

A: Made from M35 cobalt HSS, they handle stainless steel, carbon steel, iron, copper, aluminum, and wood.

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