With the addition of a fence you can now quickly and accurately mark anything from a work piece edge, as well as use the T-rule as an accurate layout square. Slide the fence along the work piece with 0.5mm mechanical pencil or scribe in place to use as a marking/mortice gauge too. The end has height marking slots 50mm high to expand its usefulness even more.
Available in two configurations - the metric only has marking holes every 1/4mm in either 150mm or 300mm length range. The combination metric/imperial rule has marking holes at every 1/16th, 1/32nd, 1/64th and 1/100th of inch across the 6in or 12in range or or every 0.5mm in the metric 150mm or 300mm range.