Features of "ABF3" Series with Bearing Boiler Tube Expander 'Value For Money' tool in the world when flaring of boiler tube ends is needed. Sturdy construction with rolls self contained in cage. Time tested, durable design. Overlapping flare rolls prevent ridging of boiler tubes. Bearing reduces frictional buildup for smoother tube expanding cycles. Bearing increases useful life of tool. Use : High productivity tool used where flaring of tubes ends is needed.