iGaging Wheel Marking Gauge with 1/32nd & 1mm scale

Wheel marking gauge this tool allows you to make perfect hairline layout marks both with and across wood grain. The single Bevel edge wheel scribes a fine line without tearing the wood fibers and does not wander with the Wooden grain. Features: precision machined solid-brass body and knurled lock nut. Brass head with 8 inch steel rod shaft is graduated 1 mm/1/32 inch increments for easy reference can be used as a depth gauge great for quick measurement transfers wheel retracts into face of the gauge for protection and easy vertical storage free-spinning wheel cuts wood fibers; doesn't tear them designed for comfortable one-handed operation balanced feel.