Check the listing for details. Round Threading Die 3/4-20 UNEF Thread Right Hand Screw Cutting Fixed Dies. Condition: New. Listed at 26.29 USD. Thread Size: 3/4-20 UNEF (Right Hand)Outside Diameter: 45mm / 1.77"Thickness: 14mm / 0.55"Accuracy Class: 6gMaterial: Alloy Tool SteelPackage Content: 1pcs x Round DieDescriptions:The threading die is made of alloy tool steel, which has excellent hardness, high torque, good toughness and wear resistance, and long-lasting performance.Round dies can process, correct or clean the external threads, and is used for ordinary thread processing of stainless steel, aluminum alloy, cast iron, copper, iron, aluminum, plastic. Great for maintenance and repair work on pipes, boards and machinery.Conical locking hole, strong locking force, no loosening. Suitable for re-threading existing threads in hard materials like metal and making new threads in soft material such as plastic.