Built different than conventional style vises, the combination Palmgren 6 in. Bench & Pipe Vise houses a super strong power tunnel with straight-line pull that assures the spindle and nut never wear out. A precision fit of the slide bar eliminates side play and jaw wobble even when clamping with the jaws wide open. The vise spindle and nut are totally enclosed in a square tube casting that protects them from dust, chips and moisture, keeping them lubricated for life. The body is heavier and made of 65,000 psi ductile alloy stress parts. They're practically indestructible and are 70% stronger than the competitive u-shaped styles. These vises have the throat depth to meet the toughest job requirements and come with both hardened and replaceable steel serrated jaws and pipe jaws. Reinforced large anvils are designed to handle additional non-clamping applications. A 360° swivel base with dual lock downs and 4 point mounting holes deliver secure, safe clamping. These vises are ideal for maintenance applications, tool and die shops, fabrication shops, automotive garages, tradesmen and construction sites. These vises can be used in indoor and outdoor applications.