Pneumatic trim router 51857

20,000 RPM motor, rear exhaust. Composite motor housing. Includes ?Universal? trim router housing. ?Universal? tool adaptor threads, 1-3/8" ? 18 male .7hp models and guide threads (1/2" ? 20 male), for use with existing inventory of template guides. All models have 1/4" Collets, use only 1/4" shank bits. Nickel plated adapters/housings for added durability. Quick adjustment of trim housing depth, complete models include (2) housing adjustment wrenches. Safety throttle levers on all models.