Prism Squares
An optical square is a hand instrument used by surveyor's to lay off right angles that are multiples of 90° or of 45°. They normally comprise of two optical glass penta prisms in a sturdy housing. Used for placing points on a line, offset measurements, setting our curves or determining horizontal plans. We provide two good quality optical squares and attachment accessories which are durable and made to a high standard.
If you would like more information before buying the correct optical square please call us on 01480 404888 or email us at sales@sccssurvey.co.uk and we will do our best to help.


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