About This

【Industrial M35 Cobalt Steel Construction】 Made of premium ISI M35 high-speed steel with 5% cobalt for extreme heat resistance and 3X longer lifespan vs standard HSS bits. 50% harder than titanium coatings, effortlessly drills through stainless steel, aluminum, and hardwoods.
【TiAlN Nano-Coating Technology】 Advanced TiAlN coating reduces friction by 40% and withstands temperatures up to 1100°F (600°C). Provides 3X more durability than conventional TiN/AlCrN coatings for smoother, longer-lasting performance.
【4-Spiral Flute Design for Effortless Drilling】 Self-cleaning grooves prevent clogging while laser-sharpened edges deliver burr-free holes. Cuts faster with minimal vibration, even in thick metals (up to 1/4" per step).
【34 Sizes in One Versatile Set】 Includes 34 step bits (1/8"-7/8") with laser-etched size markings. Perfect for electrical work, HVAC, DIY projects, and professional metalworking. Replaces multiple drill bits with one unibit.
【Precision Ground Cutting Edges】 Laser-calibrated tip geometry ensures ±0.1mm drilling accuracy for perfect round holes every time Micro-polished cutting edges eliminate burrs on both entry and exit surfaces Matched with 118° universal point angle for versatile material penetration
【Ergonomic Hex Shank Design】 1/4" hex shaft fits all standard drills, impact drivers and magnetic holders Knurled grip zone prevents bit slippage during high-speed operation
【100-Day Risk-Free Guarantee】 Backed by a 100-day warranty - instant replacement or refund if your step bit breaks. 24/7 US-based support with 12-hour response time.