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.

Shipping: Beaver Industrial Supply offers free shipping on orders over $199, with the exception of Sawstop and Laguna, which require additional fees to be collected. Other exceptions apply as noted on product pages.

We reserve the right to determine the fastest and most cost-effective manner of transportation for all orders that qualify for free shipping. Our shipping carriers cannot deliver to PO box or U.S. military post office box addresses, such as APO and FPO, so we require a physical street address for delivery. We use USPS, which typically takes 2-8 days for delivery, depending on your location, for smaller items and UPS Ground for all other ground shipments under 150 pounds.

• Returns: We accept returns and exchanges for a fee up to 30 days in unopened, new, and unused condition in the original packaging. Exceptions apply.

Please note, NO REFUNDS will be given on any new, used, or damaged item if it is not returned in the original packaging, no matter what condition the packaging is in. If the item qualifies for free shipping, you will be charged the original shipping cost and are responsible for shipping the product back with the shipping carrier of your choice.

We must receive the item undamaged. We recommend you package it accordingly and purchase insurance for higher-priced items to ensure you receive the full refund minus any incurred fees as applicable. We reserve the right to refuse the return of accessories.

Because items are your responsibility until they reach us, we recommend that you send the parcel using a delivery service that insures you of the value of the goods. Return shipping is at the customer's cost. At Beaver Industrial Supply’s discretion, delivery charges can be refunded if the goods are defective.

Returns require a return authorization number. Please call customer service at 314-773-5999 or submit a customer service inquiry to start the exchange or return process and receive an authorization number.

Machinery too large for parcel shipment (palletized or crated) is only returnable if there is a material defect that cannot be resolved by replacing components.