Maximum mud flow with minimum restriction. The Melfred Borzall End-Load, High Flow Housing is a perfect match for your next rock job when utilizing a mud motor or air hammer. It has the design, strength, and flow capacity to handle the toughest rock bores. Ideal to use with Mud Motors, Eagle Claw & Iron Fist bits & bolt-on bit bodies. Run your mud motors at maximum power and efficiency, even on long bores.