Why is there an expiration date on the gas fuel for my cordless tools? Wilson October 03, 2020 18:18 There is an expiration date on the gas cylinders used with Bostitch Cordless Nailers that can be found at the top, just below the cap. When a cylinder reaches this expiration date, it can lose effectiveness and pressure. Related articles What are the product numbers for the batteries and chargers for the Bostitch cordless tools? Comments 0 comments Please sign in to leave a comment.