The Control Unit:
Control Unit has a number of controls which, when used in combination can provide the response needed for almost any application. Starting with a heavy metal case, this is a machine designed for durability. Other features include a continuously variable control knob, feedback circuitry, two modes, forward & reverse switch, and overload protection.

Manual/Foot Mode Switch:
For use without the foot rheostat, the Manual Mode provides a constant burst speed. The speed is set and adjusted with the speed control knob. The foot rheostat allows hand-free operation. A maximum speed can be programmed into the unit, which will not be exceeded until reset.

Overload Circuitry:
Because a micromotor can burn out in the event of an overload, an Auto Shut off Circuit is built in. This circuit will automatically shut off power to the handpiece in the event of an overload, ensuring long motor life.

Marathon–7 Micromotor Drill
Portable Drill for Temporal Bone

This drill system features:

• Continuously variable 0-45,000 rpm
  Excellent Torque
  
• Forward & reverse switch
  
• Automatic stop & reset when the current is overloaded
  
• No noise, vibration & heat after long hours of operation
  
• Feed back circuitry produce more power
  
• Compact and portable