Features: Premium step drill bits deliver exceptionally hardness and wear resistance, ensuring precise drilling in metal, wood, and plastic with reduced slippage via 118° X shaped tip design. The two flute structure and stepped sizing enable rapid chip removal and multi depth drilling, while the X ground point minimizes workpiece damage through controlled penetration. Ideal for metalworkers, carpenters, and DIYer enthusiasts requiring professional tools for intricate fabrication or home improvement projects. Perfect for creating clean holes in electrical enclosures, crafting decorative wooden pieces, or modifying PVC piping in workshops and construction site. Engineered with bearing steel cores and tapered cutting edges, this versatile step drill set achieves smooth milling and sawing functions across mixed materials without bit jamming. Specifications: Component: Bearing Steel Product size: See product size diagram Package Includes: 1 Set Step Drill Bit note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.