About this product
The BESSEY MMS-12 is an all-steel sliding arm F-clamp with a 12 in. clamping capacity, a 2-1/4 in. throat depth, and a 400 lbs. clamping force rating. Designed for shop floor welding, metalworking, and general assembly, this F-style clamp offers quick setup and long clamping range, performing up to nine times faster than traditional C-clamps.
Crafted with a single-piece cold-drawn steel rail and integrated fixed jaw, the rail is heat-treated after bending to withstand heavy clamping stress. It incorporates a drop-forged, electro-galvanized steel sliding arm, a steel sliding T-bar handle for steady force application, and a crimped-on swivel pressure pad for secure contact on workpieces.
Features & Benefits
- Single-Piece Cold-Drawn Steel Rail: Formed with an integrated fixed jaw from one piece of steel for strength and alignment.
- Heat-Treated Rail: Post-forming heat treatment maximizes resistance to bending and flexing.
- Drop-Forged Sliding Arm: Electro-galvanized steel arm ensures durable sliding motion and holding force.
- Steel Sliding T-Bar Handle: Offers smooth leverage for precise tightening.
- Swivel Pressure Pad: Standard crimped-on pad swivels to seat flat against workpiece surfaces.
- 9x Faster Operation: Rapid sliding action eliminates long spindle winding associated with C-clamps.
What's Included
- (1) BESSEY MMS-12 All-Steel Sliding Arm F-Clamp
Choose the 12 in. MMS-12 for maximum clamping capacity in the MMS series, or select the MMS-4 (4 in. capacity) or MMS-8 (8 in. capacity) for smaller workpiece setups.
Description supplied by Beaver Industrial Supply through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.






