The MORLIN 5400 Hammer speeds up and takes the work out of the only tedious, costly, and time-consuming job of fabricating duct work- closing the "seam." This new MORLIN tool breezes along at speeds of 15 feet per minute on commonly used gauges. Actually, it can save half of a man's time in making ducts, and do a better job.Our Model 5100 works on 16 gauge and lighter. All steel and aluminum construction. Heat treated for longer life.  Click here for a list of Morlin 5400 Partshttp://www.eaglemorlin.com/5400explode.htmlClick here for a list of 5200 parts http://www.eaglemorlin.com/5200explode.html