This is a gem of a square, nicely made and very versatile. With a stock length of 62mm and a blade length of either 100mm or 150mm it is just the job for getting into tight corners. The end face of the 25mm wide stock is ground square to the long side so it can get into places where no other square can reach, just the job for squaring up a tap as it starts to bite, for example. Apart from the obvious use as a try square it can serve as a depth gauge and as a gauge for marking off parallel lines. With the rule set to the required offset and a pencil or scriber held against the end the gauge can be run along the edge of the work and a line can be marked out parallel to the datum edge. This is quicker and more accurate than marking off two points and joining with a straight edge. The blade is marked in both imperial and metric.