# Impact Extension Bar 400 mm 3/4" with Hole — Rockforce RF-8047400MPB

**URL:** https://aio.lv/en/product--rockforce-rf-8047400mpb--12082425
**Data updated:** 2026-03-13 08:53 (EET)
**Category:** Power Tools Accessories
**Manufacturer:** Rockforce
**Manufacturer code:** RF-8047400MPB
**EAN:** 5905101379343
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 17.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 14.45 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rockforce-rf-8047400mpb--12082425

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

Rockforce impact extension bar RF-8047400MPB is a 400 mm long 3/4" drive accessory designed for use with impact wrenches and heavy-duty sockets. Featuring a through-hole for securing with a pin or retaining ring, it extends reach for fasteners in deep or recessed locations and withstands impact torque during automotive, industrial, and maintenance tasks.

## Long description

Rockforce impact extension bar 400 mm 3/4" with hole is a heavy-duty drive accessory designed to extend the reach of 3/4" impact wrenches and sockets. Constructed for impact use, the 400 mm length provides access to deep or recessed fasteners while the through-hole allows secure attachment with a pin or retaining ring. This extension bar is suitable for automotive, industrial and maintenance settings where higher torque and reliable connection are required.
Advantages
The extension bar is engineered to resist impact torque and repeated use, reducing the need to disassemble surrounding components to reach fasteners. Its through-hole ensures secure locking of sockets or universal joints during high-torque operations. The straightforward design and compatible 3/4" drive size make it compatible with a wide range of professional impact tools and accessories.
Suitable for
Automotive repair and wheel assembly where lug nuts or bolts sit deep
Industrial maintenance and machinery servicing with recessed fasteners
Construction and heavy equipment servicing requiring extended reach
Key specifications
Drive size: 3/4"
Overall length: 400 mm
Design: impact-rated extension with through-hole for pin or retaining ring
Material and finish: heat-treated alloy steel with impact-capable surface treatment
Compatibility: intended for use with impact wrenches, impact sockets and universal joints rated for 3/4" drive
How to use
Select a compatible 3/4" impact socket and slide it onto the extension bar. Align the through-hole with the socket or adapter retaining hole and secure using a suitable pin or retaining ring to prevent disengagement during operation. Attach the extension bar to the impact wrench square drive, verify secure connection, and operate the tool following the torque and safety guidelines of the impact wrench and socket manufacturer. Inspect the extension for wear or damage before use and replace if deformation or cracking is observed.
Usage recommendations
Use only with impact-rated sockets and tools of the same drive size. Avoid using cheater bars or modifying the extension; do not use the extension with non-impact hand ratchets. Wear appropriate eye and hand protection when operating impact tools and follow recommended torque limits to avoid overstressing the extension and connected fasteners.

## FAQ

### How much does the Rockforce 3/4" Impact Extension Bar 400 mm cost, and is it available for purchase?

The price is 17.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 84 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 17.07.2026 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 Rockforce 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 Rockforce 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/12082425/68545947_large.webp