PT&reg; 16703 2-1/2" Portable Tristand Chain Vise fits RIDGID&reg; 16703 PT Mini 425 2-1/2" Portable Tri-Vise 1/2" pipe bending shoes. Lightweight Heavy Duty Tristand Pipe Vise. All parts warrantied and replaceable. 1/8 to 2-1/2" (3-60 mm) pipe capacity quality alternative to rigid chain vise. Pipe stand legs are made of 1" heavy wall tubing for greater tri vise stability. Quality lightweight and portable pipe jack stands. Better warranty than RIDGID.