# Open-end/box wrench Unior U600379 28 mm, chrome-vanadium steel, single piece

**URL:** https://aio.lv/en/product--unior-u600379--12404127
**Data updated:** 2026-04-30 18:30 (EEST)
**Category:** Wrenches & Adjustable Wrenches
**Manufacturer:** Unior
**Manufacturer code:** U600379
**EAN:** 3838909003795
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 24.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 20.65 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--unior-u600379--12404127

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Unior U600379 is a 28 mm combined open-end/box wrench made from chrome-vanadium steel. Designed for turning hexagonal fasteners, it provides a secure fit with a closed ring end and an open jaw on the other side. Suitable for automotive, mechanical and maintenance work where a durable hand tool for medium to high torque is required.

## Long description

Unior U600379 28 mm combined open-end/box wrench is a single-piece hand tool manufactured from chrome-vanadium steel. It features a closed 12-point ring at one end and an open jaw at the opposite end, designed to engage hexagonal fasteners and bolts. The tool is intended for medium to high torque applications and is suitable for automotive, mechanical and general maintenance work where a reliable, durable wrench is needed.
Advantages
The one-piece construction provides torsional strength and reduces the risk of joint failure compared with multi-piece designs. Chrome-vanadium steel construction delivers good hardness and wear resistance while the chrome finish helps protect against corrosion and facilitates cleaning. Having both a ring and an open end on the same 28 mm wrench increases versatility on the job, allowing fast switching between confined and more accessible fasteners without changing tools.
Suitable for
Automotive repair and maintenance tasks involving 28 mm hex bolts and nuts
Mechanical assembly and disassembly where medium to high torque is required
Workshop and field service work that needs a durable, single-piece wrench
Maintenance of agricultural and industrial equipment with compatible fasteners
When it may not be suitable
This 28 mm combined wrench is not suitable for fasteners that require torque values beyond manual capability or where a torque-limiting tool is required for precision tightening. It may also be impractical for very confined spaces where only a low-profile or crowfoot-style wrench will fit. For soft or plated fasteners where damage is a concern, alternative tools or protective measures should be considered.
Key specifications
Size: 28 mm
Type: combined open-end and 12-point box end (single piece)
Material: chrome-vanadium steel
Finish: chrome plated
Application: manual turning of hexagonal nuts and bolts
How to use
Select the 28 mm size on the wrench and position either the ring end or the open jaw onto the fastener so the tool fully contacts the flats of the nut or bolt. Apply steady manual force in the required direction, keeping the wrench aligned with the fastener axis to minimise rounding. Use the ring end for better grip and reduced slippage on tightly torqued fasteners, and use the open end where the ring cannot reach. Do not use the wrench with impact tools or as a hammer.
What to consider before purchase
Confirm the fastener size is 28 mm to ensure proper fit
Assess working clearance to determine whether the ring or open end will be more practical
Consider required torque levels and whether a torque wrench or powered tool is needed
Prefer single-piece chrome-vanadium designs for durability in demanding use
Usage recommendations
Store the wrench dry and clean the chrome finish after use to maintain corrosion resistance. Inspect the tool regularly for rounding or wear at the jaws and ring; replace if fit becomes loose to avoid damage to fasteners. When higher accuracy of torque is required, use this wrench to position components and finish tightening with a calibrated torque wrench.

## FAQ

### How much does the Unior U600379 28 mm combined wrench cost, and is it available for purchase?

The price is 24.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 03.07.2026 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 Unior 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 Unior 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/12404127/68691437_large.webp