Description of LDEXIN Diameter Spiral Metalworking Drills
✨【Spiral Flute Drill】: Speed helix design for three times faster drilling than standard bits,sharp and twisted flute will make the drilling be more easy and effortless. ✨【Durable and Excellent Working】: Using high-quality high-speed steel and withstand heavy duty operation for a long tool life.Double cut groove, sharp edge strength, strong cutting force, high cutting speed. ✨【Surface Black Oxide Finish】: Surface treated with abrasion-resistant black oxide,adds lubricity, better for smoother drilling, reduced heat and extended drill bit life. ✨【Split Point Design】: Split point tip starts on contact to keep the bit from walking for fast accurate holes,for clean results. ✨【Application】: For use in steel, copper, aluminum, brass, oak, maple, MDF, pine, PVC, polycarbonate, acrylic, ABS, nylon and composite materials.