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toolant Noir-Ti Cobalt Countersink Drill Bit Set(Pro), Titanium Aluminum Nitride Coated with Quick Change Hex Shank, 5-Piece 1/4″ – 3/4″ 1/4 – 3/4 in, 5 Pieces

Quick facts

  • Brand: ‎toolant
  • Price: USD 39.99
  • Rating: 4.50 (191 reviews)

If you want cleaner chamfers and faster countersinking in metal, the toolant Noir-Ti Cobalt Countersink Drill Bit Set (Pro) is a solid upgrade. This 5-piece set pairs industrial-grade cobalt high-speed steel with a Titanium Aluminum Nitride finish designed to improve heat resistance and help the cutting edges stay sharp during demanding drilling tasks.

Each bit features a one-piece, impact-ready 1/4″ hex shank for quick changes in compatible drivers, making it easy to move between sizes without slowing down. The set includes five pieces spanning 1/4″ to 3/4″ so you can match the countersink to common fastener and chamfering needs.

  • 5-piece Pro cobalt countersink set for chamfering and drilling through metal
  • Titanium Aluminum Nitride coating for high surface hardness and heat resistance
  • Industrial-grade cobalt high-speed steel for strength and durability
  • Impact-ready, one-piece 1/4″ hex shank for quick-change convenience
  • 90-day warranty with refund/replacement support

At 4.5 stars across 191 reviews, it’s a popular pick for users who want a metal-focused countersink set with a quick-change hex format.