18mm HSS Nitriding Black Drill Bit - 1/2" Reduced Shank, 3-Flat Design For Wood, Plastic & Soft Metal

Need to drill a big, clean hole? This 18mm (about 11/16 inch) drill bit is built for the job. Made from 4341 High-Speed Steel (HSS) with a tough Nitriding Black coating, it stays sharper longer and resists heat when drilling through wood, plastic, acrylic, and soft metals like aluminum or copper. The shank is 1/2 inch but has three flat sides—that's the \3-flat\ or \triple-flat\ design—which gives your drill chuck an ultra-secure grip to prevent slipping, even at high torque. The overall length is 6 inches, with a cutting edge length of about 3.2 inches, giving you good reach. The 118-degree point angle starts the hole quickly and cleanly. Perfect for woodworking, DIY projects, automotive work (on thin sheet metal or brackets), or any hobby that requires a large, precise hole. Remember, for best results, start with a smaller pilot hole, especially in hardwoods or metals. Keep your drill speed moderate and let the bit do the work. A reliable, professional-quality bit for your toolbox.