Faithfull
Faithfull Prestige Tri-Scale Engineer Rule Black Aluminium 300mm FAIRULETECNC
Model FAIRULETECNC
Best price
Where to buy
| Retailer | Price | Availability | Visit |
|---|---|---|---|
| Cheapestchecked an hour ago | £12.30 | In stock | Visit Blueperry agriculture (UK) (opens in a new tab) |
 checked an hour ago | £12.95£18.62 | In stock | Visit Tooled Up (opens in a new tab) |
 retailer's price from 16 Jul 2026 | £14.11 | In stock | Visit Blueperry Tool & Builders Merchants (UK) (opens in a new tab) |
Prices exclude delivery. We may earn a commission if you buy through these links, which never affects the ranking above — it is always cheapest first.
Price history
Full price historyToday's price is above the 53-day average and 5% above the lowest we have recorded, so it may be worth waiting.
About this product
The Faithfull Prestige Tri-Scale Engineer Rule is a precision measuring and scaling tool for engineers, architects and draughtsmen working on scaled technical drawings. It converts ratios quickly thanks to six scales (1:20, 1:25, 1:50, 1:75, 1:100 and 1:125), each identified by colour-coded inserts for fast recognition.
The rule is CNC machined from aluminium with a black anodised finish for corrosion resistance, and the graduations are laser engraved for lasting measurement accuracy. Its triangular profile keeps fingers clear of knife blades when used for cutting or scoring card and drawing materials.
Measuring 300mm (12in) in length, it is suited to architectural plans and engineering schematics requiring precise scale conversion.
| Length | 300mm (12in) |
|---|---|
| Scales | 1:20, 1:25, 1:50, 1:75, 1:100, 1:125 |
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