HSS titanium-coated large step cone drill bit set — titanium hole cutter Product highlights and key benefits Built for durability: Made from high-quality HSS (high-speed steel) and heat treated for strength. The titanium coating reduces friction and heat for longer tool life and more consistent performance. Cleaner, faster cuts: Two-flute design delivers smoother chip evacuation and faster cutting for cleaner, more precise holes with less burr. Accurate, repeatable sizing: Each step is clearly labeled with a depth gauge, so you can stop at the exact diameter required without guesswork. Polished finish: Heat treated and polished to a high gloss to reduce sticking and improve bit runout for rounder holes. Versatile material compatibility: Designed to drill perfectly round holes in steel, brass, plastic, wood and other common workshop materials. What it does for you Reduces heat and wear so bits stay sharper longer and require fewer replacements. Produces consistent, clean holes across multiple diameters with a single bit, saving time on jobs that need several hole sizes. Makes step drilling simpler and more accurate thanks to clearly labeled steps and polished performance. Key attributes Material: High-speed steel (HSS), titanium coated Design: Step cone (large), two-flute geometry Finish: Heat treated and polished to a high gloss Function: Multi-diameter hole cutting with clearly labeled depth/size steps Compatibility: Effective on steel, brass, plastic, wood, and similar materials Practical use scenarios Electrical panel and enclosure work: Quickly create multiple knockout sizes for cable glands and connectors without changing bits. Metal fabrication and HVAC: Drill clean, round holes in sheet metal for fast fittings and flange work while minimizing burrs and rework. DIY and woodworking: Use the same bit to bore progressively larger holes in plastic, plywood or soft metals when installing grommets, bushings, or conduit. Why professionals and hobbyists choose this bit Practical multi-size drilling with fewer tool changes Reduced heat buildup and smoother cutting action thanks to titanium coating and two-flute design Clear step markings for repeatable results and less trial-and-error This is the new HSS steel large step cone drill bit set titanium hole cutter — engineered to give consistent, cleaner holes with improved durability across a range of materials.