Features High-Speed Steel Durability: Crafted from high-speed steel, these drill bits offer exceptional sharpness and wear resistance, significantly enhancing your drilling efficiency Rapid Drilling Performance: Engineered for fast drilling, these bits ensure you can complete projects quickly without compromising on quality Versatile Application: Ideal for various materials like stainless steel, iron, copper, aluminum, wood, and acrylic sheets, making them perfect for both industrial and household use Compatible with Multiple Tools: Designed to work seamlessly with ordinary pistol drills and electric drills, providing flexibility and convenience for all your drilling needs 5-Piece Set for Complete Projects: This box includes 5 precision-engineered drill bits, ensuring you have the right tool for any job, big or small Features: 1、Made of high-speed steel material, with high hardn and wear resistance. 2、It has sharp double-sided blades that can help improve work efficiency. 3、The spot welding cutter bit can easily separate the spot welding panel without distorting the metal plate. 4、Double？sided rotating blades are suitable for most drills and better meet your needs. 5、The of the product is simple and the blade replacement is more convenient. Specification: Condition:100% Item Type: Spot Weld Drill Material: High Speed Steel, Stainl Steel Model: 3/8 Spot Welding Drill (13PCS) Blade Length: Approx. 75 mm/3.0in Shank Diameter: Approx. 7 mm/0.3in Package List: 1 x Spot Welding Drill 2 x Center Drill 10 x Hole Opener Package List 1 x Spot Welding Drill 2 x Center Drill 10 x Hole Opener