Bessey DuoKlamp DUO 650/85 The original BESSEY DuoKlamp always fits firmly in your hand. The handle and pump lever are placed parallel to the guides, ensuring optimal grip. With the practical rotary knob, you can always switch the clamp from clamping to spreading. The large, flat clamping surfaces, made of impact and break-resistant, reinforced polyamide, run precisely parallel. Max clamping force 1,200 N. Features 1.02 kg clamping depth b 3.25 inches guide profile thickness 5mm clamping width a 2 inches spreading width e min/max 75-685mm clamping width a 650mm spreading width f min/max 9-660mm guide profile width 20mm