# Carpenter's corner square Proline 5212306 30 cm — right-angle layout and marking tool

**URL:** https://aio.lv/en/product--proline-5212306--10784382
**Data updated:** 2026-03-12 10:12 (EET)
**Category:** Measuring tools
**Manufacturer:** Proline
**Manufacturer code:** 5212306
**EAN:** 5903755212306
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 13.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 11.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-5212306--10784382

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 25.06.2026 | free |
| Pickup points | 30.06.2026 | 1.99 EUR |
| Courier delivery to door | 30.06.2026 | 4.99 EUR |

## Summary description

Carpenter's corner square Proline 5212306 is a 30 cm right-angle layout and marking tool for woodworking and construction. Designed to check and mark 90° corners, align edges and transfer measurements, it suits joinery, framing, cabinetry and general carpentry tasks. Durable design provides stable reference for accurate cuts and fits.

## Long description

Corner square Proline 5212306 is a carpenter’s layout tool combining a movable aluminium ruler, spirit level, scribe and adjustment screw. The aluminium ruler has a double-sided scale on both edges and a thickness of 18 mm, with a total length of 30 cm. The tool measures external and internal 90° angles and provides depth measurement up to 300 mm. The included scribe enables marking and tracing on metal surfaces.
Advantages
The movable aluminium ruler allows precise measurement of both internal and external right angles. A built-in spirit level ensures quick alignment, while the adjustment screw secures the ruler in place for repeated measurements. The double-sided scale on the 30 cm ruler gives readings from either edge, and the metal scribe simplifies marking on workpieces.
Suitable for
 Carpentry and joinery layout work
 Measuring and marking 90° angles on wood and metal
 Depth measurements up to 300 mm
 On-site adjustments and repeated angle checks
Key specifications
 Brand: Proline
 Model / MPN: 5212306
 EAN: 5903755212306
 Type: Carpenter’s corner square with movable ruler
 Ruler material: Aluminium
 Ruler length: 30 cm
 Ruler thickness: 18 mm
 Scale: Double-sided on both edges
 Angle measurement: 90° external and internal
 Depth measurement: up to 300 mm
 Included: Spirit level, metal scribe, adjustment screw
How to use
Position the aluminium ruler against the workpiece and adjust the movable arm to form the required external or internal 90° angle. Use the adjustment screw to lock the ruler in position for marking or repetitive measurements. Use the built-in spirit level to verify alignment. For depth measurements, extend the ruler and read the depth on the scale up to 300 mm. Use the metal scribe to mark cut lines or tracing on metal surfaces.
Usage recommendations
Keep the ruler and scribe clean of debris and metal filings; tighten the adjustment screw before transferring measurements; store in a dry place to prevent corrosion of the scribe. Use gentle pressure when scribing on finished surfaces to avoid undesired scratches.

## FAQ

### How much does the Carpenter's corner square Proline 5212306 30 cm cost, and is it available for purchase?

The price is 13.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 231 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 25.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Proline products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Proline service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/10784382/60034067_large.webp