Hey metalworkers and fabrication pros, this ACTOOL annular cutter is seriously efficient for drilling clean, precise holes in metal! The 1-1/8 inch diameter with 1 inch depth of cut is perfect for a wide range of applications, and it comes with a free pilot pin for added stability. Made from tough M2 high-speed steel that's heat-treated for maximum durability - this thing can handle some serious abuse without dulling quickly. The unique cutting edge geometry provides fast feed rates with less vibration and smoother hole surfaces compared to traditional drill bits. The 3/4 inch Weldon shank with two flats fits most major brands of magnetic drills, and it can also be used with mills and large drill presses with the right tool holders. Works great on steel, copper, aluminum, stainless steel, and even plastic - whether you're working with plate or pipe material. The cutting efficiency is incredible - it removes material only from the circumference rather than the entire hole area, which means faster drilling with less power required. Important safety notes: always wear protective equipment, secure your workpiece properly, set appropriate RPM and feed rates, and use coolant to extend the cutter's life. The quality is professional-grade without the professional price tag - whether you're in a shop setting or doing serious DIY metal projects, this annular cutter will save you time and frustration compared to conventional drill bits.