Double Optical Square
- Large centre glass for easy lining up.
- All metal housing and sliding protective cover.
- Includes carry pouch.
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- Double Optical Square with carry pouch
- Builders quality double penta prism for fast right angle sighting in either direction.
- The accuracy of a right angle set out with the optical square is approximately ±1cm at 30m.
Used for:
Placing points on line, Setting out curves, offset measurements, determining the horizontal, detail plans and area measurement, simple height measurements.
Opsquare