9" Stroke Riveting Hammer. Heavy-duty riveter will drive hot rivets up to 1-1/4" diameter. Sizes designed for light and medium riveting work also available. Suited for general construction work and pipe lines. Supplied with standard clip style rivet set retainer. Safety style retainer 160-2.445 available as an option. Can be converted to a rivet buster with retainer for using chisels.