What is the warranty on the 78-403 Air Ratchet Wrench?

Stanley warrants this product to the original purchaser for a period of THREE (3) YEARS against deficiencies in material and workmanship. This LIMITED WARRANTY does not cover products that are improperly used, abused, altered or repaired. Deficient products will be replaced or repaired at Stanley's option. Proof of purchase is required. Please email us or call 800-262-2161 for more information or return instructions.