Hardness BHN 207 max.Drill rod is used in the manufacture of tools and dies, punches, drills, gauges, pins and other machine parts that require high strength and durabilityIt is ideal for use in power drive shafts and other precision applicationsMedium WeldabilityLow Corrosion ResistanceDepth of Hardening - ShallowHighest GrindabilityDiameter: 9/16 Inch Finish: Ground & Polished Industry Standard: IFI 136 Item: Drill Rod Length: 36 Inch Material: Tool Steel - Water Quenched Measurement: Inch Origin: Imported Specification: ASTM A681,IFI 136 Type: 1/4 Inch Dia x 11/64 Inch Dia Point