BQ overshot, BQ EZY-Lock overshot, BQ surface overshot.
BQ overshot is an integral part of the BQ Wireline drilling system.Once the BQ inner tube is full of core, the BQ overshot is lowered to the bottom of the hole to lift BQ inner tube assembly to the top of the hole. BQ overshot has the EZY-Lock part to lock the lifting dogs that keeps the safety when lay down the BQ inner tube assembly.BQ overshot is drive by the wireline winch. BQ overshot is used for the B size surface diamond drilling application.
BQ Overshot
BQ Overshot Spare Parts Kit