Bindrill was developed to work in conjunction with Binwhip. If a silo is completely bridged, a flow channel needs to be established to enable the removal of the product. The Bindrill functions in the same way as a mobile oil or hole boring rig. It is driven by the same power unit and control block used for the Binwhip.
A hole is bored through the bridged product to create a hole of sufficient diameter to allow the Binwhip to be lowered in and complete the task.