"The Yost Heavy-Duty Industrial Combination Bench Vise is constructed with sturdy 65,000 PSI ductile iron body parts for durability and longevity. Flat and pipe jaws are replaceable to extend the life of the vise. Continuous rolled thread on main screw allows easy opening and closing of the vise. U.S.A. Pipe Jaw Yes, Replaceable Jaw Yes, Double Look-downs No, Jaw Capacity in. 6, Jaw Depth in. 5 1/2, Jaw Width in. 4 1/2, 360 Swivel Base No, stationary. 65,000 PSI tensile ductile iron body parts Replaceable hardened steel flat serrated jaws Replaceable hardened steel pipe jaws Pipe jaws set back to allow for machinist's vise use Pipe jaws designed to grip pipe securely Design helps prevent pipe marring, crushing or bending Furnished with machined flat base for easy mounting Conforms to Fed. Spec. GGG-V-410B Type IV No-pinch main screw handle Continuous rolled thread on main screw Limited lifetime warranty on castings only"