This dual-purpose clamp is either a guide rail providing a firm straight edge for a saw or router etc. or a clamp giving firm pressure when gluing up multi-panel boards. The 45mm wide anodised aluminium channel forms a rigid straight edge and features a full length steel tension rod and a measuring scale. The jaws are fitted with protective pads. One end has a large easily operated handle, with a three-position cam lock mechanism, at the other is the moveable, self-locking jaw. The clamp has a hanging hole for storage when not in use. Available in two sizes giving clamping capacities of 635mm (25") or 1,270mm (50").