The Capri Tools Quick Change Chuck for Air Hammers makes inserting and release air hammer attachments easy. Just a simple push of the quick release ring located on the chuck lets you insert or release air hammer attachments. The chuck has a universal fitting that is compatible with most standard air hammers and accessories. Constructed from premium steel for durability, with rubber threading to provide a non-slip grip and ensure a stable, secure connection. Chuck has four retaining balls that hold attachments securely in place.