Bessey Tools 9-1/2 in. Welder's 90 Degree Angle Clamp WSM-12

The BESSEY WSM-12 is a heavy-duty welder's right-angle clamp designed for aligning and holding steel plate, square tubing, and structural profiles at an exact 90-degree angle. Engineered for professional metal fabrication and welding applications, it supports a maximum total capacity of 9-1/2 in. (4-3/4 in. side capacity for miter joints).

Built from high-grade cast iron with an electro-galvanized finish, the WSM-12 provides high rigidity and thermal stability during intense welding operations. Its single copper-plated ACME spindle is rolled and work-hardened to resist welding spatter adhesion, ensuring smooth thread operation over time. A free-floating movable jaw automatically compensates for different material thicknesses, while the open pass-through design provides a 4 in. clearance for T-joint assemblies. Slotted base holes allow quick bolting to welding tables or machine beds.

Features & Benefits

• Copper-Plated ACME Spindle: Rolled, work-hardened ACME thread spindle repels weld spatter to prevent thread binding and wear.
• Free-Floating Movable Jaw: Automatically self-adjusts to securely clamp workpieces of unequal thicknesses at a true 90-degree angle.
• High-Grade Cast Iron Construction: Precision-milled cast iron base and jaw block deliver rigidity and resist deformation under high heat.
• Large T-Joint Passage: Features a 4 in. clearance opening for assembling T-joints and pass-through metal profiles.
• Tommy Bar Handle: Heavy-duty tommy bar with rounded ends provides maximum clamping leverage and operator control.
• Slotted Base Mounting Holes: Allows simple bolt-down mounting directly to welding tables or workbench surfaces.

What's Included

• (1) BESSEY WSM-12 Welder's 90 Degree Angle Clamp

Choose the WSM-12 for heavy metalworking and structural welding requiring up to 9-1/2 in. total capacity, 2-1/2 in. jaw height, and a 4 in. T-joint passage. For lighter metal fabrication requiring up to 7 in. total capacity and 1-1/2 in. jaw height, select the BESSEY WSM-9.