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Bessey GSM40 16 inch sliding arm clamp steel rail swivel jaw

Bessey Tools

Bessey Tools GSM40 16 in 660 lb hand tool

SKU CH-76ES-DMWKM MPN GSM40

A 16-inch sliding-arm bar clamp delivering 660 lb clamping force with a 5-1/2 inch throat depth for industrial applications

  • TypeClamps
  • MaterialHAWA
  • Weight7.4
  • Strong 660 lb clamping force for heavy work
  • 16 in capacity spans wide assemblies
  • 5 1/2 in throat reaches deep joints
  • Tempered drop-forged handle resists wear
  • Spatter-resistant spindle finish repels debris

16 in Sliding Arm Clamp

The Bessey GSM40 is a heavy-duty bar clamp built for industrial clamping tasks. Its profiled steel rail and sliding T-handle deliver a 16 in capacity with a 5 1/2 in throat depth. A clamping force of 660 lb suits demanding glue-ups and assembly work.

Check rail length and throat clearance

Verify that the 16 in opening and 5 1/2 in throat depth match the workpiece dimensions you typically handle. Ensure the 1 3/16 in bar thickness and 5/8 in bar width fit your bench dogs or fixture slots. The 7.4 weight requires a stable mounting surface.

Upgrades from lighter bar clamps

This model replaces standard clamps when higher pressure or deeper reach is needed. The tempered drop-forged steel handle and high-carbon spindle resist wear under repeated heavy loads. Swivel jaw pads protect delicate surfaces during high-force clamping.

Highlights

  • Strong 660 lb clamping force for heavy work
  • 16 in capacity spans wide assemblies
  • 5 1/2 in throat reaches deep joints
  • Tempered drop-forged handle resists wear
  • Spatter-resistant spindle finish repels debris

Specifications

BrandBessey
ModelGSM40
TypeClamps
MaterialHAWA
Weight7.4

Questions about this item

What comes with the Bessey GSM40 clamp and what must be bought separately?

The clamp ships complete with its profiled steel rail, sliding T-handle, high-carbon spindle and swivel jaw pad — no extra parts are required for basic clamping.

Which capacity of the GSM40 should I choose for my project?

This model provides a fixed 16 in clamping capacity and 660 lb force; select it when your workpiece fits within that span and pressure.

What does the 660 lb clamping force mean when I use the tool?

It indicates the maximum pressure the spindle can apply through the swivel pad, allowing firm hold on heavy or dense materials.

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