A really useful robust gauge for setting router cutter depths, fence positions and saw blade heights. The precision cast aluminium body houses a metric laser etched measuring scale that enables measurement above and below the base of the gauge. This is very useful if you want to measure the depth of a groove or housing for example. The measuring scale is securely locked in position by a knurled knob to the rear of the gauge and the setting is easily checked against a clearly visible line on the locking mechanism. Internal width 60mm with an adjustable height and depth range up to 60mm.