M35 COBALT STEEL FOR TOUGH METALS - Made with 5% cobalt high-speed steel for drilling stainless steel, hardened steel, cast iron, alloy steel, and other demanding materials.
ALTIN COATING FOR LONGER BIT LIFE - Aluminum Titanium Nitride coating helps reduce heat and friction, improving wear resistance during repeated metal drilling jobs.
STEPPED SPLIT-POINT TIP STARTS FAST - Self-centering stepped point design helps reduce walking, starts cleaner holes, and improves control without needing a pilot hole in many applications.
SECURE 3-FLAT SHANK GRIP - 3-flat shanks help prevent slipping in keyed and keyless drill chucks, giving better torque transfer for shop, mechanic, fabrication, and repair work.
COMPLETE 29-PIECE FRACTIONAL SET - Includes 1/16 inch to 1/2 inch sizes by 64ths in a durable metal index case, giving professionals a full range for precision metal drilling.