Mitre-Square-150mm-6in-Hultafors-254003-p-Gives-an-automatic-right-angle-when-mitre-cutting-without-having-to-estimate-When-the-square-is-turned-steplessly-to-the-required-angle-the-indicator-flag-halves-the-angle-p-p-Made-from-fibreglass-reinforced-nylon-with-an-indicator-flag-of-zinc-plated-metal-It-can-be-used-for-both-internal-&-external-angles-p-Hultafors-254003-Mitre-Square-150mm-6in-