HOOPZI Stepper Drill Bit Set, Spiral Grooved, High Speed Steel Titanium Coated, 4mm to 12/20/32mm Metric Hex Shank, hss Cutting Tool for diy Plastic, Wood,

General description Stepper Drill Bit Set features a spiral grooved design that allows for efficient step drilling, enabling you to cut multiple hole sizes with a single bit. This eliminates the need for constant bit changes, making your drilling tasks more convenient and efficient. Technical specifications Material: High Speed Steel (HSS) with titanium coating Size Range: 4mm to 12/20/32mm Shank Type: 6.35mm (1/4 inch) hex shank Usage Suitable for drilling holes in various materials including plastic, wood, metal, aluminum, copper, and brass. Ideal for applications such as sheet metal work, sink installation, and car repairs. Can cut through wood thickness up to 5mm.