Faithfull
Faithfull Engineer's Square 100mm (4in) FAIES4
Model FAIES4
Best price
Where to buy
| Retailer | Price | Availability | Visit |
|---|---|---|---|
| Cheapestchecked 2 hours ago | £12.96 | In stock | Visit Blueperry agriculture (UK) (opens in a new tab) |
 checked 3 hours ago | £13.95£19.63 | In stock | Visit Tooled Up (opens in a new tab) |
 retailer's price from 16 Jul 2026 | £14.85 | 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 Engineer's Square with a 100mm blade is suited to general engineering work, layout tasks and checking perpendicularity on medium-sized components. It is made from high quality tool steel, with the stock and blade precision ground for straightness and accuracy, and the spring steel blade hardened and tempered for durability under regular workshop use.
It is accurate to BS939 Grade B standard. The stock is 8.5mm thick and the blade 1.7mm thick, with an external size of 120 x 75mm and an internal size of 100 x 56mm.
| Size | 100mm (4in) External size: 120 x 75mm |
|---|---|
| Internal size | 100 x 56mm |
| Stock thickness | 8.5mm |
| Blade thickness | 1.7mm |
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