Professional Countersink Drill Bit Set for Metal

Our 5-piece nitriding countersunk bits set, designed to cater to various drilling needs, includes a range of sizes from 1/4, 3/8, 1/2, 5/8, to 3/4 inch. All these bits come in a Gift Box for easy storage and transport.

Composed of industrial-grade high-quality alloy steel, the M35 cobalt Metal countersink bits undergo multiple manufacturing processes, ensuring enhanced durability. Each countersink is coated with a blue oxide coating to prevent corrosion, further guaranteeing superior quality and longevity.

The 5 flute design of the M35 cobalt countersink bits ensures efficient debris removal, resulting in smoother and cleaner countersinking. These countersink drill bits excel in deburring, chamfering, and countersinking tasks across a variety of woodworking projects.

The 1/4in hex shank countersinks are compatible with all handheld and stationary drills, offering convenience and user-friendliness for woodworkers and DIY enthusiasts. The Rotary counter sink bit can withstand the high speed of 6000RMP, mitigating the risk of breakage.

These precision grinding countersink drill bits can be used to drill holes in most workable thin metals, copper, aluminum, iron, carbon steel, plywood, softwoods, hardwoods, fiberglass plastics, and mild steel. However, chamfering on metal requires pre-punched holes first.

While our products undergo stringent quality inspections, unforeseen issues caused by accidental factors may occur. If you encounter any quality problems, please contact us via Amazon, and we will promptly replace the defective item with a new one.

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