TrigJig Rafter Square RS300 (metric)


Introducing the brand NEW RS300 Rafter Square. The largest metric Rafter Square by TrigJig.

Developed for quick and simple marking/laying out of roof trusses with the smart adjusting fence that locks in position for repeatability. With 6 marking gauges on the blade, the RS300 can be used in many carpentry and fabrication projects.

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The RS300 blade is manufactured in Great Britain from laser cut and CNC machine profiled 3mm stainless steel, resulting in a precise and robust tool.

The blade has an anti-glare surface for outdoor use and has laser marked graduations finished with a protective heavy-duty satin clear coat that contributes to the anti-glare properties.

The stylish adjustable blue anodised aluminium fence is CNC machined and is fixed to the blade via nylon 66 bearings for smooth operation locked in place with a stainless steel thumb screw.

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

  • 300mm ruler
  • Fixed protractor gauge along the hypotenuse edge
  • Adjustable rise and run protractor gauge (in degrees)
  • Scribe lines every 5mm
  • 1 third scribe marks for common timber thicknesses
  • Constructed from 3mm stainless steel
  • CNC profiled blade
  • Adjustable CNC machined aluminium fence
  • Made in Great Britain


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