“IRWIN INDUSTRIAL” DRILL BIT1/4″ Dia. x 4″ O.A Length.Bit is constructed of M-2 high speed steel for strength.heat and wear resistance and used for general use in wood, metal, and plastic.The 135 degr
“IRWIN INDUSTRIAL” DRILL BIT1/4″ Dia. x 4″ O.A Length.Bit is constructed of M-2 high speed steel for strength.heat and wear resistance and used for general use in wood, metal, and plastic.The 135 degr