For the ultimate in traditional accuracy this mortice gauge takes all the features of the standard rosewood mortice gauge and adds one important feature - the addition of a 5.0mm lead screw running through the main bar, providing fine second pin adjustment relatie to the first fixed pin.
It is still produced from rosewood with a solid 18.5mm main bar measuring 203mm long. The mortice pins can be positioned 6.0 - 140mm apart via the second adjustable pin that runs on a 4.75 x 5.50mm t-profile brass strip or 135mm when using the single marking gauge pin. There are extra 3mm brass wear strips installed in the face solid 65 x 56 x 28mm fence and a knurled brass knob locks the fence in place.
When buying this gauge you are buying from one of the last few manufacturers based out of Sheffield England where the place of manufacture still equates to the premium quality that it has been known for hundreds of years. You will immediately appreciate the quality of this and other rosewood gauges in the Crown range.