Our entire range of tools and supplies are guaranteed for a full 90 days from the purchase date. If you have received a faulty item, just return the item with a copy of your invoice to the address below. Please also include a note as to the nature of the problem. If upon inspection we determine that the item was faulty, we will notify the manufacturer immediately and credit you back right away. In the rare event you recieved a faulty item or there was an error on our part, we will reimburse you in full for the shipment back to us (at regular UPS Ground Rates) and pick up the tab for any re-shipments back to you. Be assured, we’ll make it right.