Oshlun, Inc. guarantees all of our products 100% against defects in material and workmanship for the life of the product. We will replace any product that our inspection finds defective. This warranty does not cover alterations to the product, improper use, or normal wear and tear. If you suspect a problem with one of our products, return it freight prepaid to 1051 Olsen St Ste 111, Henderson, NV 89011. We will need a complete description of the problem you are having, your return address, phone number, and if applicable, the material you were cutting and machine you were using. We will do everything possible to expedite the return process. Oshlun, Inc. authorizes no other warranty; verbal, written, or implied.