Bessey WMS-4 Adjustable Magnetic Welding Square

Product Description

The BESSEY WMS-4 is a double magnetic welding fabrication square designed for holding metal workpieces at precise angles during welding and fabrication work. It features an adjustable holding range of 0 to 180 degrees, allowing fabricators to position parts at any angle within that range without switching tools. The unit delivers a maximum pull force of 110 pounds, providing strong, reliable magnetic grip on steel and other ferrous materials. At 5 pounds, it is built with enough mass to stay planted on a work surface while handling the stresses of tack welding and fit-up operations. Welders, ironworkers, and metal fabricators are the primary installers and end users of this tool.

The WMS-4 is suited for use in metal fabrication shops, welding booths, and field welding applications where precise angle-holding is required. It works across a wide variety of joint configurations including butt joints, T-joints, and corner joints. The adjustable angle range makes it useful for both structural steel work and light-gauge sheet metal fabrication. It is appropriate for both professional fabrication environments and trade apprenticeship settings where repeatability and ease of setup are priorities.

Key Features

• Adjustable holding angle from 0 to 180 degrees covers the full range of common weld joint configurations
• 110 lb maximum pull force provides secure magnetic clamping on ferrous workpieces
• Double magnet design increases grip stability and reduces workpiece shift during tack welding
• Compact footprint at 3.375 inches high, 6.125 inches wide, and 0.625 inches deep
• 5-pound unit weight adds stability on flat and vertical surfaces

Compatibility

Designed as a general-purpose adjustable magnetic welding square for use with ferrous metal workpieces in professional welding and fabrication applications.

Installation Notes

This tool is used by welders and metal fabricators during fit-up and tack welding operations. Ensure all mating surfaces are clean and free of mill scale, heavy rust, or non-ferrous coatings that can reduce magnetic holding force. Do not use on non-ferrous materials such as aluminum, copper, or stainless steel, as magnetic pull force will be significantly reduced or absent. Keep the magnet surfaces clear of weld spatter buildup to maintain full clamping performance.