Drill rods were being removed using a stilson spanner. The drill rod connection often required excessive force to release because of dirt infiltrating the connection. The stilson would often slip when under maximum load with a high risk of injury to the operator.
Goldmont designed a spanner that could be used for both loosening and tightening drill rod joints with the following characteristics:
- three point connection to give more reliable grip
- extra gripping attachment to provide more control
- quick attachment and release
- fit multiple rod sizes without jaw adjustment