Carver CRVT28518 T285-450 Medium-Duty Long Reach Rack Clamp 45cm These clamps have many uses. The most common include welding metal fabrication moulding box and die holding plate fabrication plastic and fibreglass moulding and maintenance work. Medium/long reach jaws. Capacity: 450mm (18in). Reach: 200mm (8in). Overall Length: 655mm (25.3/4in). Clamping Force: 9,000N. Weight 8.5kg.