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TrigJig fixed rafter square RSA300F

The TrigJig fixed rafter square RSA300F was developed for the quick and marking/laying out of roof trusses and other carpentry work, simplified and accelerated by a practical spirit level in the fence.  

€184.00 *

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  • TJRSA300F
  • TrigJig
The RSA300 has an anti-glare anodised surface to help with outdoor use on sunny days.... more
Product information "TrigJig fixed rafter square RSA300F"

The RSA300 has an anti-glare anodised surface to help with outdoor use on sunny days. The laser marked graduation rulers and parallel scribe scales are recessed in pockets to avoid wear over time.

The degree lines are deep engraved so they won't rub off, and as they are made on the same CNC milling machine that profiles the square, the level of precision is excellent. 

The two part silver anodised aluminium fence is also CNC machined and is fixed to the tool via 8 stainless steel machine head bolts. This houses a 40mm spirit level with an accuracy of 62' 2mm making it perfect for marking and finding level marks when roofing and timber framing.

There are several features and marking gauges on the face of the tool, including;

  • 300mm rule (plus a smaller rule along the fence edge)
  • CNC deep engraved protractor gauge along the hypotenuse edge
  • Common rafter and hip/valley rafter gauges in degrees
  • Scribe lines for common timber dimensions
  • 1/3rd scribe marks for common timber thicknesses
  • Parallel slots for laying out ridge centre lines and trench lines
  • Rise per metre of run table
  • Rafter length per metre of run table
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