TrigJig Grafter 180 Metric Rafter Square
TrigJig Grafter 180 Metric Rafter Square - Black/Blue is backordered and will ship as soon as it is back in stock.
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Product: TrigJig Grafter 180 Rafter Square
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Target Trade: Professional Carpenters, Roofers, Framers, Joiners
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Core Innovation: CNC-milled T6 aluminum construction with an integrated 360° bubble vial yielding extreme +/- 0.008° precision.
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Best British-engineered metric rafter square for avoiding layout drift and costly timber rework.
The TrigJig Grafter 180 redefines layout accuracy for professional framers and roofers. CNC milled from a single, solid piece of 4mm T6 aluminum plate in the UK, this metric rafter square delivers an extreme right-angle precision of +/- 0.008° along its entire length. Unlike mass-produced cast squares, the Grafter 180 integrates a highly sensitive 360° bubble vial directly into the dual-sided anodized fence, allowing tradesmen to find level and plumb marks instantly without reaching for secondary tools.
The Pro's Equation: Precision Without Compromise
In structural framing and high-end roofing, measurement slop dictates the difference between a seamless fit and costly timber waste. Cheap, stamped squares introduce micro-errors that compound over large spans. The Grafter 180 eliminates this margin of error completely. Featuring stepped stud-off notches for precise pencil marking and highly abrasion-resistant laser-etched scales, it ensures every mark is fast, repeatable, and deadly accurate. By investing in this British-engineered precision instrument, professionals drastically reduce layout downtime and prevent expensive rework, making it a critical, tax-deductible asset for high-performance crews.
Why Pros Choose the TrigJig Grafter 180:
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Unmatched Accuracy: CNC-milled construction guarantees a strict +/- 0.008° right-angle precision.
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Integrated Spirit Level: A built-in 360° bubble vial allows for instant plumb and level checks during layout.
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Extreme Durability: Bright white, laser-etched markings offer extreme abrasion resistance against daily job site wear.
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Smarter Scribing: Features stepped stud-off notches and 5mm scribe notches to account for marking medium thickness.
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Roofing Ready: Includes a comprehensive rafter length per metre of run table and a dedicated birdsmouth line.
| Feature | Detail |
| Model | Grafter 180 Rafter Square |
| Material Construction | CNC-Milled 4mm T6 Aluminium Plate |
| Precision Tolerance | +/- 0.008° along the entire length |
| Main Rule length | 182mm (Metric layout) |
| Level Integration | Built-in 360° bubble vial inside the fence |
| Hardware Components | Stainless steel machine head bolts |
| Surface & Markings | Silver anodised protective finish with laser-etched scales |
| Manufacturing Origin | Engineered and manufactured in the United Kingdom |
How durable are the markings on the TrigJig Grafter 180?
The markings are highly durable and designed for heavy commercial use. They are deeply laser-etched in bright white against the anodized aluminum finish, providing extreme abrasion resistance to ensure they will not rub off easily during harsh job site conditions.
Can I use this square to check plumb and level directly?
Yes. The Grafter 180 is uniquely designed with an integrated 360° bubble vial built directly into the CNC-machined fence. This allows professional framers to immediately check level and plumb marks without needing to carry a separate torpedo level.
Is this square optimized for metric roofing calculations?
Absolutely. It is fully engineered for the metric system, featuring a 182mm main rule, a dedicated rafter length per metre of run table, 1/3rd scribe marks for common timber widths, and scribe notches every 5mm for rapid parallel marking.
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Delivery and Shipping
Delivery and Shipping
Your order is scheduled to be dispatched within 2-3 business days.
Delivery time within New Zealand is 2-3 days after dispatch unless there is a known issue.
With International Express Courier (DHL)
Australia - 3-5 days, and some remote area up to 7-10 days.
Other parts of the world 5-10 days.
With NZPost International Economy Courier (if available)
Takes 5-20 days depending on your location.
Any Customs related costs are to be paid by the customer.
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TrigJig Grafter 180 Metric Rafter Square
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