Rigid aluminium body with steel threaded components. Range of travel 12.4mm – 146mm (1/2″ – 5-3/4″). Clamp arms fit into 9.5mm (3/8″) holes in the top of the auxiliary fence. Secures shop-made auxiliary fences to existing fences without having the clamp interfere with the workpiece. Compact and lightweight. Rigid aluminium body with steel threaded components. Range of travel 12.4mm – 146mm (1/2″ – 5-3/4″). Clamp arms fit into 9.5mm (3/8″) holes in the top of the auxiliary fence. Secures shop-made auxiliary fences to existing fences without having the clamp interfere with the workpiece. Compact and lightweight.