
Spring-loaded, easy to use (one-hand operable) locking pins. Just lift and twist.

The ER™retracts and locks into position for secure traveling, multiple ranges and locking positions.
The ER's heavy duty construction provides for years of service.
The SpinDoctor boom is made of high strength steel tubing that is of sufficient size and strength that when it tries to bend on the weak axis and then twist it can carry the loads. It has the strength and flexibility to go up to 500 foot pounds of torque and show no signs of yielding with no permanent deformations in any of the parts of the boom.
Additional tests have been conducted with the SpinDoctor boom using a 4-1 multiplier that pushed the torque rating to over 2,000 foot pounds without showing no signs of failure.
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