Description

The KNIPEX 400MM Pliers Wrench Smooth (86 03 400) is the largest model in the slip-joint pliers wrench range, providing maximum jaw capacity and mechanical advantage in an instrument scaled for industrial applications. The smooth jaw faces — as opposed to serrated gripping surfaces — make this model appropriate for use on soft metals, chrome-finished fittings, and polished fasteners where serrated teeth would cause marking or damage.
At 400mm, this tool handles the largest fasteners, flanges, and fittings encountered in industrial electrical and mechanical applications — main cable entry glands on switchgear, large flange bolts, and heavy structural fasteners. The parallel jaw geometry maintains flat, even contact across the full jaw face for maximum grip area on large-diameter fasteners.
A specialist, heavy-duty pliers wrench for the most demanding large-fastener applications in industrial electrical and mechanical service environments. Its smooth jaw makes it the correct tool wherever surface preservation is a requirement alongside high-torque fastening capability.