This Veritas wheel marking gauge has a hardened steel wheel cutter which scribes perfectly at any point of its circumference. Since it cuts wood fibres rather than tears, it marks cleanly, even on cross grain. The wheels singlesided bevel also pulls the gauge face against the stock, maintaining accuracy. Its cutting edge is at the extreme end of the rod, useful for transferring dimensions such as tenon shoulder and mortise depth. The wheel retracts into the face of the gauge for storage and protection. A micro-adjustable version is also available.