IRWIN 73138 TURBOMAX Fractional - Metal Index

Revolutionary tip design stays sharper longer and drills up to 28 percent 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-2 high speed steel for the best combination of strength, heat resistance, and wear resistanceSpecificationsItem #Contents7313613-piece set in metal index case includes drill bit sizes 1/16" through 1/4" in 1/64" increments7313715-piece set in metal index case includes drill bit sizes 1/16" through 1/2" in 1/32" increments7313829-piece set in metal index case includes drill bit sizes 1/16" through 1/2" in 1/64" increments7314921-piece set in metal index case includes drill bit sizes 1/16" through 3/8" in 1/64" increments7333313-piece set in plastic case includes drill bit sizes 1/16" through 1/4" in 1/64" increments