About This

Industrial-Grade Material Countersink Drill Bit Set: Crafted with M2 High-Speed Steel (HSS) for ultimate durability and longevity, our precision-ground countersink bits maintain sharpness longer, ensuring consistent performance.
Enhanced Design: Our 5-flute design with 5 sharp blades offers smoother drilling and cleaner cuts, reducing chatter and providing flawless chamfers on a variety of materials including metal, wood, and plastic. When drilling metal, cutting oil will help a lot.
Versatile Sizes & Angles: This comprehensive set includes sizes 1/4”, 3/8”, 1/2”, 5/8”, and 3/4” with a universal 82-degree angle, perfect for cutting countersink holes at an 82-degree angle, and screws, bolts, or other fasteners can be properly seated or hidden, resulting in a smooth surface finish.
1/4” Quick Change Hex Shank: Equipped with a 1/4" quick-change hex shank, our drill bits lock securely into impact drivers and quick-change chucks, enhancing grip and minimizing slip.
Portable & Well Organized: 5-piece countersink drill bits are with size identification and well oiled for anti-rust purpose and packaged in a sturdy, compact case for convenient storage and transportation. After each use, applying oil to them will keep them in good condition for a longer time.