Step Drill Bit Set | HSS Titanium Coated | 4-42mm Multi-Material Hole Cutter

This 4-32/4-42 mm HSS step drill bit is engineered for precision and speed, creating clean, burr-free holes in sheet metal, wood, and plastic. The titanium nitride coating reduces friction and heat buildup, extending tool life and allowing for faster drilling cycles. Its high-speed steel core provides exceptional durability for professional and DIY use. Features and Benefits - HSS Core with Titanium Coating - The high-speed steel construction ensures strength and heat resistance, while the titanium nitride surface reduces friction for smoother cuts and longer lifespan. - 4-32mm / 4-42mm Step Range - A single bit replaces multiple standard drill bits, offering 13 precise step sizes for versatile hole creation without tool changes. - 135-Degree Split Point Tip - This aggressive tip design provides faster starts, prevents walking on curved surfaces, and requires less pressure to begin drilling. - Flute Design for Efficient Chip Removal - The deep, polished flutes efficiently clear debris from the hole, preventing clogging and ensuring consistent, clean cutting performance. Applications - Electrical and Plumbing Installations - Perfect for creating clean knockouts in electrical boxes or precise holes for pipes and conduit in thin-gauge metal. - Automotive and Sheet Metal Fabrication - Ideal for enlarging existing holes or drilling new ones in vehicle panels, exhaust components, or custom metalwork without deburring. - General DIY and Woodworking - Excellently suited for drilling holes for hardware, cables, or ventilation in wood, plastic, and composite materials. Note For optimal performance and longevity, use with a cutting fluid when drilling hardened metals and operate at recommended RPMs for the material.