Dotco 12-10 Series Router. Dotco 12-10 Series Routers feature tremendous power for the toughest portable operations. Dotco 12-10 Series Routers also feature a unique governor design that assures minimum air consumption and maximum power all at the correct speed and a long motor life. All Dotco 12-10 Series Router models are oil free. Dotco routers give their operators a durable, satisfying experience for every routing need. These tools are designed with precision in mind our full range of routers offers a variety of sizes, speeds and accessories to perfectly match your work. Exhaust: Front Shank Diameter Capacity: 1/4” Free Speed (rpm): 30,000 Type Housing: Composite Weight: 1.4lbs/0.64kg Overall Length: 6.7”/170mm Air Inlet Size: 1/4”