PowRyte Elite Composite Short Stroke Air Hammer with 4 Chisels High blows/minute for fast cutting action, and alloyed steel barrel and heat-treated piston providing more power and longer life Lightweight composite body reduces fatigue and increases comfort during cold weather use Coil spring retainer for fast-and-easy chisel changes; Touch control trigger for easy user controlling Includes 4 air hammer chisels (Flat, Splitter, punch and Weld Buster) for cutting metals, chipping and scraping surfaces 1-5/8-inch stroke, 5000 BPM (blows per minute)