Air Chipping Hammer, 2" Stroke, 2300 BPM, Hex Shank Oval Collar. Whether you’re working in construction or demolition, the A Series chipping hammers are great for any job. With its incredible power-to-weight ratio, these hammers will increase productivity and make working easy. Durability: The A Series chipping hammers are equipped with a rubber buffer retainer and threaded barrels to extend the life of your product. Reliability: The A Series hammers have lock spring retainers that make sure the steel stays in place. Access: With a swan neck handle and long nozzle, you’ll be able to work in tight, hard to reach spaces with ease.