5Pcs Countersink Drill Bit Set, 82 Degree 5-Flute Industrial-Grade HSS, 1/4" Hex Shank, Sizes 1/4"-3/4" for Wood, Plastic, Fiberboard & Soft Metals,

5Pcs Countersink Drill Bit Set, 82 Degree 5-Flute Industrial-Grade HSS, 1/4" Hex Shank, Sizes 1/4"-3/4" for Wood, Plastic, Fiberboard & Soft Metals,

[Versatile Application] This countersink drill bit excels in deburring, chamfering, and countersinking for a wide range of woodworking projects. Featuring a 1/4-inch hex quick-change shank, it is compatible with electric hand drills, impact drills, bench drills, and other tapping machines. [High-Quality Material] Crafted from industrial-grade high-speed steel (HSS), these bits offer excellent heat resistance. Each bit features an oxide coating to resist corrosion, significantly extending service life—ideal for long-term, heavy-duty use. [Packaging & Portability] This set includes 5 popular sizes (1/4", 3/8", 1/2", 5/8", 3/4") and comes with a sturdy, moisture-resistant aluminum storage case. The compact design ensures easy storage and hassle-free transportation, keeping your bits organized anywhere. [Easy to Use] For optimal results, pre-tap a pilot hole before use. Each bit is clearly marked with its dimension for quick size selection—no guesswork, even for beginners. [Customer Support] Your satisfaction is our priority. If you have any questions or need assistance, feel free to contact us—we’re here to help.

In woodworking and metal processing, you need to carry out countersunk processing to make the surface smooth and smooth, so that your products look more refined and beautiful.

Our countersunk drill kit includes countersunk drill bits in 1/4", 3/8", 1/2", 5/8" and 3/4" sizes for electric hand drills, percussion drills, bench drills, electric screwdrivers and other tap machines.

Precision ground countersunk drill bits can be used for drilling and are suitable for most machinable thin metals, copper, aluminum, iron, carbon steel, plywood, cork, hardwood, fiberglass plastics and mild steel. Tips: chamfering requires drilling first.