Starrett 815 Toolmakers Hammer with Built-in Magnifying Lens Light weight -only 4 ounces Both flat and ball peen heads are hardened and offset for use in corners or close to obstructions The lens is mounted in rubber for shock resistance Handle has hole for hanging Made of a steel forging for strength and rigidity This is a very practical tool that is just as much at home on a toolmakers bench as it is on a businessman's desk Faster, easier and more accurate spotting and punching of centerlines and intersections is now possible with the starrett hammer for toolmakers and die makers The hammer is also useful as a portable gavel or paperweight, and for light tacking, magnifying a sliver and more