T—squares can be temporarily adjusted by putting the thumb tack in the head as illustrated. This is used when the previous work does not align with the T-square.
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The Empire 48 in. Adjustable Angled T-square has a heavy-duty, 1/4 in. thick blade and features an adjustable head that can be set at 30, 45, 60 and
48 in. Adjustable T-Square
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