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Key Features

• -【M35 HSS Cobalt Coated for Longer Life】 Countersink drill bits are crafted from M35 cobalt high-speed steel, provide double protection fortified with a cobalt coating for enhanced durability, corrosion resistance, and heat resistance.This guarantees reliable performance, even in demanding applications.
• -【5 Sizes for Diverse Drilling Tasks】This countersink drill bit set includes 5 popular sizes, which are 1/4'' 3/8'' 1/2'' 5/8'' and 3/4'', these five sizes can meet most of the daily needs. Comes with a PVC storage box for easy portability, storage and organisation.
• -【82° Design for Faster Chip Removal】Featuring precision-ground 82° tips, these counter sink drill bits are ideal to debur, trim, enlarge and countersink clean and smooth holes in a variety of materials including metals, wood, plastic, and more
• -【5-Flute Design for Smoother Cutting】The five-flute design removes chips efficiently, reduces vibration, ensuring a faster and smoother drilling experience; Cutting oil will be extremely helpful in extending the life of the bits while drilling metals
• -【Hex Shank for Universal Compatibility】The 1/4" quick change hex shank fits seamlessly into most power drills and drivers. Drill holes in medium - hardness materials such as copper, aluminum, plywood, softwood, hardwood, and fiberglass plastics,convenient for woodworkers and DIY enthusiasts.