The RIDGID Constant Swing Tube Cutter features an enclosed feed screw to eliminate clogging and jamming, grooved rollers for close-to-flare cuts, and a fold-away reamer. It has an X-CEL Knob that cuts tubing more quickly and easily with the larger, more ergonomic design. Whilst the X-CEL Wheel Pin helps to change your cutter wheel quickly using the new ball detent design, no tool needed and no lost clips. It is made from high-strength zinc alloy and there is a spare cutter wheel included in the knob. It cuts copper, brass, and aluminium tubing and thin-wall conduit. RID66742 is fitted with a heavy-duty cutting wheel.RIDGID 66742 Heavy-Duty Constant Swing 150LS Tube Cutter. Std. Wheel: E-4546.Capacity: 6-35mm (1/4 – 1.3/8in).Weight: 0.47kg.