3/32 inch Turbo maximum Drill Bit High speed steel Revolutionary tip design stays sharper longer and drills up to 28% faster than other leading drill bitsThree-flatted shank design provides better chuck grip and reduces slippage. Ideal for use in keyless chucksBit is constructed of M-1 high speed steel for the best combination of strength, heat resistance, and wear resistance3/32 in. diameter, 1-1/8 in. twist length, 2-1/4 in. overall lengthThree flatted shank on 3/16 in. and above for better chuck grip2-1/4 in. overall length1-1/8 in. flute length3/32 in. size drill bit