The RIDGID Quick-Acting Tube Cutters for Plastic feature a quick-acting design, I-beam construction, hardened wear surfaces and thrust bearing slide assemblies for smooth operation. The X-CEL Knob cuts tubing more quickly and easily with the larger, more ergonomic designs. The X-CEL Wheel Pin makes changing the cutter wheel quicker using the new ball detent design, no tools needed and no lost clips. Also available in models for Copper pipe.RIDGID 31667 Quick-Acting 156-P Tube Cutter For Plastic Std. Wheel: E-2157.Capacity: 110-160mm (1.1/2 – 4in).Weight: 2.23kg.