HSS Drill Bit Set

The Zeptix Supplies HSS Drill Bit Set is built for the demands of metalworking, woodworking, and general construction where a clean, accurate hole matters. Each bit is ground from M2 high-speed steel and coated with a titanium nitride layer that reduces friction, dissipates heat, and extends bit life by up to three times compared to uncoated equivalents. The 135-degree split-point tip starts on contact without walking, even on curved or angled surfaces, eliminating the need for a center punch on most materials. Sizes progress in standard 1/64-inch increments, and every bit is clearly laser-marked for fast identification in the index case. The round shanks fit any three-jaw drill chuck, and the overall lengths are standard jobber length for versatility across hand drills, drill presses, and magnetic-base drills. Choose the 15-piece starter set for the most common sizes, the 29-piece standard set for full fractional coverage, or the 115-piece master index that adds number and letter sizes for machine-shop completeness.