Model 154 * Features a quick-acting design, I-beam construction, hardened wear surfaces and thrust bearing slide assemblies for smooth operation * Now includes an X-Cel knob and X-Cel Pin for quicker cutting and wheel replacement * 1-7/8-Inch to 4-1/2-Inch capacity * Ridgid covers its products with a lifetime warranty against defects in material or workmanship for the life of the tool