Joseph Marples 230mm Trial One Mitre Square


Sheffield made Mitre Square with a rosewood handle

SKU: steamj-jm230mmtoms-7058 Category: Tags: , , , , , , , , , , , , ,


The 230mm squares have 1/8th inch thick machined brass on both the inside and outside faces, thus ensuring accuracy on the inside and outside edges. They have a chemically blacked spring steel blade, secured to the stock with brass diamond washers and steel rivets.

The accuracy of the try squares is well within that required by BS3322.


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