Totally enclosed fan cooled (TEFC) motors are manufactured with cooling ducts that move air through the motor laminations to keep them cool while keeping the internal portion of the motor sealed from dust and contamination. Our motors also offer the added benefit of an integrated electro-mechanical brake system. The brake system continues to operate even when the power drops out.Electronic brake systems cannot compete with the durability or reliability of our electro-mechanical brake systems.Cast ConstructionOriginal Saw Company Radial Arm Saws are manufactured utilizing high-quality heavy cast iron and cast aluminum construction. These American castings provide a rigid, vibration free cutting platform to perform many different sawing operations. It is because of this construction, we can proudly say our machines are the best in the industry. Many of the machines we produce today will be around for generations.