The Bessey GS25K is a professional-grade, all-steel screw clamp from the ClassiX series. It’s essentially the "reliable workhorse" of the Bessey lineup—designed for users who need serious clamping force without the bells and whistles (or the higher price tag) of the premium GZ range.

It is particularly popular in metalworking, welding, and heavy-duty woodworking because its all-steel construction allows it to flex slightly under high pressure, which helps it maintain its grip even if the workpiece vibrates.

Key Specifications

FeatureDetail
Opening Capacity250 mm (approx. 10 inches)
Throat Depth120 mm (approx. 4.75 inches)
Clamping ForceUp to 5,000 N (approx. 1,100 lbs)
Rail Size22 mm x 10.5 mm
Weight~1.20 kg (2.6 lbs)
Handle TypeTommy Bar (Sliding Pin)