1. Drill Bit A reliable standard drill bit for everyday use. It delivers clean, accurate holes when paired with a compatible drill. Suitable for metal, wood, and plastic, with a common shank that fits most chuck sizes. Durable construction supports repeated use in routine projects. 2. Step Drill Bit A versatile multi size bit for sheet metal and thin materials. It creates progressively larger holes with a single bit, reducing tool changes and speeding up work. Produces clean edges with minimal burrs in metal and plastic. Compatible with standard drill chucks and drills. Use scenarios - Building or repairing metal enclosures: drill holes of varying diameters in sheet metal without changing bits. - Electrical installations or hobby projects: create different size holes in metal, plastic panels, or thin materials as needed. - General workshop tasks: prepare holes for screws or fittings across multiple sizes using one step drill bit.