TETRAHYDROPYRIDAZINONE DERIVATIVE, MANUFACTURE AND USE

摘要

A quick change shoe assembly for use with a pneumatic straight line sander or orbital sander is disclosed comprising a base which is fixedly secured to the movable plate of such a sander by conventional bolts and a sanding or filing shoe having attachment means for attaching the shoe to the base, the shoe being removable therefrom without the use of tools and without necessitating the removal of the base from the movable plate.