The surface is lubricated with grease to prevent rust, the thread is clear and easy to repair. Specifications:Thread Size: 7/8-14 UNFOutside Diameter (OD): 45mm / 1.77Thickness: 14mm / 0.55Material: Alloy Tool Steel (9CrSi)Chip Pocket Quantity: 6Finish: UncoatedPackage Content: 1 x Round Threading DieDescriptions:Made of alloy tool steel, it has high hardness, wear-resistance, high hardening capacity and tempering resistance. The round die can process, correct or clean external threads. Perfect for rethreading existing threads in hard materials like metal, or making new threads in softer material such as plastic. Conical locking hole, strong locking and not loose. The end of the bar should be chamfered 1*45 degree, and the chamfer is too large to cut in. Round dies are used for cutting new threads or rethreading external threads on a part. Read more. Company Information Round Die: Thread size: 7/8-14 UNF; outside diameter (OD): 45mm / 1.77; Thickness: 14mm / 0.55. Chip Pocket Quantity: 6. Made of alloy tool steel, with high hardness, high torque, good toughness, wear-resistance, high hardening capacity and tempering resistance. Tips: It needs to be reversed every 1/4~1/2 turn to facilitate the chip discharge from the chip hole. Threading Thread Exterior Pipe Threader Uxcell 7/8"-14 UNF Alloy Tool Steel Machine Thread Round Threading Die Hand Tool Threading Boards Bead Roller Dies uxcell 1/2-13 UNC Round Die, achine Thread Right Hand Threading Die Easy to Use: The positioning groove of the die should be aligned with the fastening screw in the middle of the die wrench, and the screw should be inserted into the slot of the die and tightened. Suitable lubricating oil should be added to the cutting edge of the die when tapping the thread. Made of alloy tool steel, it has high hardness, wear-resistance, high hardening capacity and tempering resistance. The round die can process, correct or clean external threads Great for maintenance and repair work. Excessive diameter can easily cause difficult cutting and lead to damage to the die teeth. The positioning groove of the die should be aligned with the fastening screw in the middle of the die wrench, and the screw should be inserted into the slot of the die and tightened.