Maxadyne offers a six month, no hassle, warranty. If, for any reason, you are not happy with your turbines performance return it. A completely new turbine will be shipped out to you the day we receive the turbine. On average this process takes a maximum of one week from the time you ship the turbine back to us until you receive your replacement. Unlike other companies we do not deny warranty. If your turbine fails in the first six months we REPLACE it. NO QUESTION ASKED. If you have any questions or a warranty problem please call us at: 1-800-950-9431 or email at: sales@handpieceturbine.com .