The Ray Foster Model Trimmer is fabricated from stainless steel and heavy gauge aluminum with brass fittings. This Sturdy construction and a durable epoxy finish ensures these machines can withstand heavy dental laboratory use for years. Model Trimmers are precision balanced for smooth and quiet operation. This machine is available in in both 10" and 12" grinding disc diameters. The Ray Foster Model Trimmers are the original swinging door model trimmers, and set the standard for the industry. MT-10: 1/3 HP Motor with 1.35 service factor - .45 HP actual power 10" Diameter 1/4" grinding wheel 14" height, 14" width, 15" depth 115 volt, 60 Hz standard. MT-12 1/2 HP motor, with 1.25 service factor - .625 actual power 12" Diameter 1/4" grinding wheel 17" height, 17" width, 16" depth 115 volt, 60 Hz standard. Option to purchase the complete kit (MT-10A / MT-12A) is also available which includes a splash hood, water spray attachment, and automatic water valve.