Buying a new power tool is daunting. You don’t want to make the wrong decision, but you do need to test your tools to see if they’ll fit your workspace in the long term. As such, both companies do offer a warranty for their products. Wen has a 90 day commercial warranty. You can read more of their policy by going through their Warranty Statement. Harbor Freight also offers a 90-day product warranty, although their policy is much clearer. It allows consumers to request a return or replacement within the allotted time period. Learn more on their Customer Service information page.