PDQ Marlin MFG | Quick Change Tooling helps alleviate the long and difficult procedure of changing tools on a machine tool. No more Hammer! With the Quick Change Tooling system the time required to change tools can be reduced to seconds. Use of a Quick Change Tooling will drastically increase efficiency by reducing to the time to change tools, as well as making it easier to use the proper tool for the job. A 30% increase is not uncommon.