# Ring Hammer Wrench JCB JCB-79390 90 mm

**URL:** https://aio.lv/en/product--jcb-jcb-79390--11874491
**Data updated:** 2026-03-09 20:39 (EET)
**Category:** Wrenches & Adjustable Wrenches
**Manufacturer:** JCB
**Manufacturer code:** JCB-79390
**EAN:** 5056485711431
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 53.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 44.62 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--jcb-jcb-79390--11874491

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Ring hammer wrench JCB JCB-79390 with a 90 mm opening. Designed for striking applications where a durable ring-end wrench is required, it suits mechanics and technicians for loosening or tightening large fasteners with hammer blows. Constructed for heavy-duty use, the tool is intended for professional workshops, construction and maintenance tasks.

## Long description

Ring hammer wrench JCB JCB-79390 90 mm is a heavy-duty ring-end wrench designed for applications that require controlled hammer strikes to loosen or tighten large fasteners. Made for professional use in workshops, construction sites and maintenance operations, this 90 mm ring hammer wrench provides a secure fit on large nuts and bolts while allowing impact force to be applied through the body of the tool. Its construction is intended to withstand repeated striking and high torque demands typical of industrial and automotive environments.
Advantages
The tool offers a robust ring-end that surrounds the fastener to reduce rounding and distribute impact force evenly. Manufactured to meet the demands of heavy usage, the wrench combines a striking-capable head with a shaped body for secure handling. The 90 mm opening is suitable for large fasteners, and the design supports direct hammer strikes without compromising the engagement between tool and fastener. This results in more efficient force transfer and improved durability compared with standard open-end wrenches when used for impact-assisted tasks.
Suitable for
Loosening and tightening large nuts and bolts in heavy machinery and equipment
Workshop and garage maintenance where hammer-assisted torque is required
Construction and infrastructure repair involving bolted connections
Industrial maintenance tasks on agricultural and earthmoving machines
Key specifications
Type: ring hammer wrench with 90 mm ring opening
Intended use: striking/impact-assisted tightening and loosening
Construction: heavy-duty tool designed for repeated hammer strikes
Fit: full-enclosure ring end for improved grip on large fasteners
Application environment: professional workshops, construction, maintenance
How to use
Position the 90 mm ring over the fastener so the ring fully engages the nut or bolt head. Ensure the tool is seated squarely to avoid slippage before applying hammer blows. Use controlled strikes with a suitable hammer to apply impact-assisted torque; avoid excessive or off-center blows that could damage the fastener or the tool. When removing or tightening the fastener, check engagement frequently and reposition the wrench if necessary to maintain secure contact. Follow standard safety procedures such as wearing eye protection and keeping bystanders clear of the striking area.
Usage recommendations
Use the wrench only on compatible fastener sizes and in conjunction with appropriate hammers. Inspect the ring and body for deformation before use, and replace the tool if cracks or significant wear are detected. For torque-sensitive applications, consider using calibrated torque tools after initial impact-assisted loosening or tightening to achieve final torque values.

## FAQ

### How much does the Ring Hammer Wrench JCB JCB-79390 90 mm cost, and is it available for purchase?

The price is 53.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 99 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 14.07.2026 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 JCB 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 JCB 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/11874491/67290389_large.webp