Description: - Fits chain sizes 415,420, 428, 520, 525, 530, 630 (check pin sizes below) - Press pin is heat treated and hardened - For chain #520 and up, it is recommended to grind the rivet head - For riveting hollow nose master links - Investment-cast, hardened body and redesigned body bolt Specification: - Each kit includes 4 pins,3 sizes to fit most chains (2x2.9mm, 3.9mm, 4.9mm) - Kit includes press plates - May be bolted to a work bench, supported in a vise or held by handle Package Includes: 1 Set Chain Breaker / Riveting Tool Note: Please be sure to verify that the push pin is aligned properly with the chain pin. It is recommended to grind off the chain pin head before using this tool.This will significantly reduce the load on the tool and help prevent premature wear or damage to the breaking tips. Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.