21-Piece M35 Cobalt Drill Bits for Hardened Metal, 3-Flute Shank Design Reduces Breakage, 135° Point for Fast Starts in Stainless Steel, Cast Iron, Wood & Plastic (1/16 to 1/2 inch)
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Special Features
【Premium M35 Cobalt Material】Crafted from industrial-grade M35 cobalt high-speed steel (5% Cobalt), these drill bits are built to outperform standard bits. They retain their cutting edge significantly longer, resisting the high heat generated when drilling tough materials. This translates to less frequent breakage, a smoother drilling process, and long-term savings for your workshop.
【Superior Chip Removal & Finish】The unique three-flute design is engineered for superior performance. It efficiently channels debris away from the hole, reducing heat buildup and preventing bit binding. The result is a cleaner, more precise hole with higher roundness and a smoother wall finish, saving you time on post-processing.
【Maximum Grip, No Slippage】Say goodbye to dangerous bit slippage! The three-flat shank ensures a completely secure, non-rotating grip in your drill chuck. This maximizes power transfer and provides greater control, allowing you to tackle high-torque applications on hardened metals with confidence and safety.
【Precision Self-Centering Start】Start drilling right on target, every time. The 135° split point tip is self-centering and drastically reduces "bit walking" on curved or hard surfaces. This means you can begin drilling faster and with pinpoint accuracy, without the need for a center punch, making your projects quicker and more efficient.
【Versatile for Tough & Common Materials】This 21-piece set is your ultimate solution for a vast range of materials. It effortlessly powers through hardened steel, stainless steel, and cast iron, while also delivering flawless results in aluminum, wood, and plastic. It's the only drill bit set you'll need for virtually any project, from professional metalworking to DIY home repairs.
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