About Drill America HSS Round Dies: HSS Round Dies are for use in making new threads or re-threading existing threads. They are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Round dies are chamfered on both faces, one side has a 2 to 3 thread chamfer for threading and the other side has a 1 to 1-1/2 thread chamfer for threading close to a shoulder. Adjustments are made by a fine pitch screw which forces the sides of the die apart, or allows them to spring together. The slot is beveled so that when the dies are used in a machine holder the adjusting screw can be removed and adjustment made by the adjusting screws in the holder. About Drill America Die Stock: Also called round die handle or round die wrench, round die stocks are specialized tools designed to securely hold and turn adjustable round dies for threading operations on rods or bolts. They provide precise alignment and control, ensuring consistent and accurate thread cutting. Specifications:- Size: #2-56, Material: High Speed Steel, Finish: Uncoated (Bright), Thread Size: #2, Outer Diameter: 13/16", Corresponding Die Stock: 13/16", Thread Type: UNC.