Master Magnetics new made in the USA Magnetic Tool Holders, available through MAC Tools, are made to safely hold and organize ferrous metal tools. These new Tool Holders are available in 13" and 24" lengths, feature 20 lbs. of pull per inch and are meant to be used to organize and display large or small tools and even metal parts. They also can be mounted to any surface and are held firmly in place by sturdy and durable welded tabs, with 1/4" holes for mounting screws.