Description
19 64 Cobalt Heavy Duty Jobber Drill Bit (12) 3 4 Hex Lag Screws Hot Dipped Galvanized Tensile strength on diameters 1 4 Tensile strength on diameters 1 4 to 2 1 2 inches is a minimum of 150 Precision ground for high degree of concentricity between shank and body diameter