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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

  • Product typeClamps
  • Main materialHAWA
  • Product 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.

How it compares

Measured against everything we stock in Utility & Specialty Hand Tools, at today’s prices. Recalculated every night.

Price $79.99
Pricier than about 82% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameBessey
Model nameGSM40
Product typeClamps
Size & build
Main materialHAWA

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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