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A metal F-clamp with a red handle resting on a light-colored surface. The clamp features a long steel bar with a sliding arm and a fixed arm forming an “F” shape. The red handle is attached to a threaded screw mechanism used to tighten or loosen the clamp’s grip. The metal surfaces show slight wear, indicating regular use, and the brand “BESSEY ST200/2” is stamped on the vertical bar.
  • A metal F-clamp with a red handle resting on a light-colored surface. The clamp features a long steel bar with a sliding arm and a fixed arm forming an “F” shape. The red handle is attached to a threaded screw mechanism used to tighten or loosen the clamp’s grip. The metal surfaces show slight wear, indicating regular use, and the brand “BESSEY ST200/2” is stamped on the vertical bar.
  • A large metal F-clamp with a red handle resting on a light-colored surface. The clamp features a long steel bar with a fixed jaw at the top and a sliding adjustable jaw below it. The threaded screw mechanism with the red handle allows tightening or loosening the clamp’s grip. The metal surfaces show slight wear and markings, and the brand “BESSEY TG4 100/2” is stamped on the vertical bar, indicating its model and manufacturer.
  • A metal F-clamp with a red handle resting on a light-colored surface. The clamp features a long steel bar with a sliding arm and a fixed arm forming an “F” shape. The red handle is attached to a threaded screw mechanism used to tighten or loosen the clamp’s grip. The metal surfaces show slight wear, indicating regular use, and the brand “BESSEY ST200/2” is stamped on the vertical bar.
  • A large metal F-clamp with a red handle resting on a light-colored surface. The clamp features a long steel bar with a fixed jaw at the top and a sliding adjustable jaw below it. The threaded screw mechanism with the red handle allows tightening or loosening the clamp’s grip. The metal surfaces show slight wear and markings, and the brand “BESSEY TG4 100/2” is stamped on the vertical bar, indicating its model and manufacturer.
Bessey 12-Inch Step-Over Heavy-Duty Steel Clamp (2,660 lbs Clamp Force) | Used, Excellent Condition | Industrial Step-Over Sliding Arm Welders Clamp

Bessey 12-Inch Step-Over Heavy-Duty Steel Clamp (2,660 lbs Clamp Force) | Used, Excellent Condition | Industrial Step-Over Sliding Arm Welders Clamp

SKU: ABL069

Brand: Bessey Tools

Condition: Used

$107.88 $215.75

Clamp over channel iron, angled flanges, and structural obstructions with massive holding pressure. Upgrade your shop rigging and fabrication setup with this used Bessey 12" Step-Over Steel Clamp.

When standard F-clamps and C-clamps hit structural obstructions, fabrication stops. Designed specifically for welding, bridge building, and structural steel fabrication, the Bessey 12" Step-Over Clamp features an angled throat profile that bridges over lip edges, T-profiles, and projecting ribs to apply direct force where standard flat-jaw clamps cannot reach.

This item is in excellent, fully functional used condition. The heavy-duty acme-threaded spindle turns smoothly with clean threads, the tommy-bar handle is straight, and the ball-joint clamping pad swivels freely. Built from cold-drawn profile steel with a high-strength drop-forged sliding arm, this clamp delivers up to 2,660 lbs of clamping force. It exhibits minor cosmetic shop wear—including light surface welding spatter, minor scuffs, and light finish patina from bench use—but retains absolute structural integrity with zero cracks or bent rails.

Key Features & Benefits

  • Step-Over Jaw Design: Angled rail-and-jaw design bridges over lip profiles, flange edges, and structural obstructions to clamp flat on hidden surfaces.

  • Massive 2,660 lbs Clamping Pressure: Heavy-duty steel rail and heat-treated spindle generate up to 2,660 lbs of continuous clamping force without flexing.

  • Heavy-Duty Acme-Threaded Spindle: Smooth-running acme thread spindle resists wear and prevents binding, even under high clamping torque.

  • Cold-Drawn & Forged Steel Frame: Heat-treated profile rail and drop-forged sliding arm absorb extreme vibration and resist twisting during heavy fabrication.

  • Swivel Pressure Pad: Ball-and-socket clamping shoe adjusts instantly to uneven metal surfaces to distribute holding pressure evenly.

Technical Specifications

Attribute Specification
Brand Bessey® Tools
Tool Type Heavy-Duty Step-Over Sliding Arm Clamp / Welder Clamp
Condition Used (Excellent functional state, light cosmetic shop wear/spatter)
Clamping Capacity (Capacity) 12 Inches (304.8 mm)
Clamping Force Up to 2,660 lbs (11,830 N)
Throat Depth 4-3/4 Inches (120 mm) approximate
Rail / Frame Material Cold-Drawn Heat-Treated Profile Alloy Steel
Spindle Type Smooth-Action Acme Threaded Screw with Swivel Pad
Handle Style Steel Tommy-Bar / T-Handle

Complete Package Contents

  • 1x Bessey 12-Inch Step-Over Heavy-Duty Steel Clamp

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