This portable drive unit is designed to power flexshaft drive submersible pumps and concrete vibrator pokers. A quick action 60 mm diameter flexible shaft coupling with aluminium alloy housing, rotary trigger latch and hardened 45 mm 3-tooth dog drive enable ease of use by allowing the operator to simply engage or disengage the flexible shaft coupling, to facilitate either a change of position or a change of flexishaft driven device. The drive units are available in a swivel cradle type frames as well as a sturdy roll over frame The swivel action on the cradle frame allows  for easy movement when vibration concrete whereas the roll over frame provides a strong steel cage to protects the engine.