Wheel Marking Gauge
This simple, yet effective Wheel Marking Gauge has a single bevel edge wheel that scribes a fine line without tearing the wood fibers and does not wander with the woods grain. A precision ground brass shoe glides against the edge of the workpiece, and the knurled brass knob makes adjustments quick and easy. Overall length is 8-1/8", with a working capacity of about 6-3/4".