Features and Benefits: Threaded to fit a wide variety of Pneumatic Hammer models; Each retainer features a positive lock sliding collar to prevent the chisel from separating from the hammer; Designed to use with “turn” or “non-turn” type shanks; One year limited warranty; Works with the following manufacturers: American Pneumatic (all models), Chicago Pneumatic (CPT716), Desouter (All models), Ingersoll Rand (121, 122, 772, AV10, AV12, AV13), Sioux (270-272) and Superior (all models).