For accurate guiding of router saws and jigsaws integral clamping jaws and a locking lever provide a quick way of clamping the guide batten ideal for holding and clamping work pieces aluminium extrusion incorporating t slots the clamps are fitted with a metricimperial scale for setting lengths and stop positions scale can be positioned by removing 20mm of the self adhesive backing three lengths of clamp available 24 inch 36 inch and 50 inch router not included patent no us7007731specifications m