Holds pipes, fittings, machined parts, fabrications and components. Made of only the highest quality ductile steel alloys. Enclosed design keeps chips and dirt out of critical parts. Features: Large jaw width • Top jaws are hardened, replaceable & reversible (standard serrated jaws, reverse for smooth jaws) • Hardened steel pipe jaws are replaceable • 60,000 PSI ductile iron body parts for heavy clamping needs • Double lock-downs & four mounting points • Straight line design - horizontal spindle & nut eliminate thread wear, increase clamping power.