Uxcell 2Pcs Round Threading Dies, Metric M4 X 0.7 Thread (Right Hand), Product Details Round Threading Die: Thread size: M4 x 0.7 (right hand); outside diameter: 25mm / 0.98"; thickness: 9mm / 0.35"; accuracy class: 6g. Made of M2 (6542) high-speed steel, it has high hardness, good toughness, wear resistance, and excellent cutting performance. Wide Applications: 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. Features: 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. The surface is lubricated with grease to prevent rust, the thread is clear and easy to repair. Easy to Use: Threading die is used with die stock (also called die handle or die wrench). The positioning groove of the die should be aligned with the fastening screw in the middle of the wrench, and the screw should be inserted into the groove of the die and tightened. It needs to be reversed every 1/4~1/2 turn to facilitate the chip discharge from the chip hole. Tips: Suitable lubricating oil should be added to the cutting edge of the die when tapping the thread. The end of the bar stock should be chamfered 1*45 degree, and the chamfer is too large to cut in. The bar diameter should be smaller ( about 0.05mm-0.15mm) than the nominal diameter of the required thread. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.