Stepped stud-off notches allow for ultra-precise markings accounting for the thickness of different marking mediums.
The two-part silver anodised aluminium fence is also CNC machined and is fixed to the tool via stainless steel machine head bolts. This houses a 30mm spirit level, visible from all four sides, and with a sensitivity of 0.5° per 2mm of bubble movement, makes 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;
- 176mm rule (plus two mini rulers along the fence edge)
- CNC deep engraved protractor gauge along the hypotenuse edge
- Scribe notched every 5mm
- 1/3rd scribe marks for common timber widths
- Rafter length per metre of run table
- Handy birds mouth line
The precision and workmanship from our manufacturing process is unrivalled and next level compared to mass-produced, laser cut or cast rafter squares.
The RSA180 Fixed is built to an extremely high standard, designed for tradespeople who are looking for exceptional durability, design and quality from their tools.
- Constructed from high quality 4mm aluminium
- High-precision CNC machine profiled
- CNC-machined aluminium fence
- 4-way visibility 30mm spirit level in fence
- Precision notches for different marking mediums
- Anodised protective finish
- Anti-wear recessed rulers
- Lifetime guarantee