Product Information
- Qualitied M35 Durable Material - Our step drill bit is made from M35 cobalt high-speed steel with a titanium coating, which has strong wear resistance, heat resistance, corrosion resistance. The 4-flute spiral grooved unibit step drill bit design makes this a fast and long-lasting metal cutting tool.
- Four Spiral Flute Design - Our step bit is designed with four cutting blades, which can provide you a faster and smoother cutting. Our step bits for metal can be smooth drilling through stainless steel, aluminum, copper, wood, plastic and other material. This step drill bit set will be a great helper for DIY lovers, improving hole drilling efficiency.
- Multiple Size Step Bit - Our cobalt step drill bits can drill holes in 13 different size to meet your needs. 9 step size include 1/8", 3/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2". Great for home repairs, metalworking, or any other task that requires precision drilling. compare with the traditional stepper drill bit for metal, the four-spiral flute can provide faster cutting and drilling, also efficiently clears away chips for smooth performance.
- TiAlN Coating & Universal Handle - Our step bits are featuring an industrial-grade TiAlN coating, which are extremely hard and can withstand high oxidation temperatures, making it perfect for hole drilling. With a 1/4-inch quick-change hex shank, this step drill bit fits securely in most drills. Please Add cutting oil or spray water to cool during continuous use.
- 100% Good After-Sale Service - We are confident with the quality of metal step drill bit, and we are sure you will love this multifunction drill bits, please feel free to contact us, if you are not satisfied with the cone drill bit, we will provide you a satisfactory solution, thanks.
