# Socket 21 mm 3/4" 6-point Rockforce RF-56521

**URL:** https://aio.lv/en/product--rockforce-rf-56521--11728422
**Data updated:** 2026-03-08 11:32 (EET)
**Category:** Screwdriver Bits
**Manufacturer:** Rockforce
**Manufacturer code:** RF-56521
**EAN:** 5905101332300
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 6.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rockforce-rf-56521--11728422

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Rockforce RF-56521 is a 21 mm, 6-point socket with a 3/4" drive designed for manual and pneumatic torque applications. The chrome-finished socket fits standard 3/4" square drives and provides a secure fit on hex fasteners to reduce slipping and rounding. Suitable for automotive, industrial and heavy-duty maintenance tasks requiring higher torque.

## Long description

Rockforce RF-56521 is a 21 mm, 6-point socket with a 3/4" square drive, designed for both manual and pneumatic torque applications. The chrome finish resists corrosion and allows easy cleaning, while the 6-point geometry provides a secure engagement with hex fasteners to reduce slipping and rounding. This socket is suitable for situations where higher torque and a reliable grip are required, such as automotive repairs and heavy maintenance work.
Advantages
The 6-point profile concentrates force on the flats of fasteners to minimize rounding and improve torque transfer. A robust construction ensures durability under repeated use with hand wrenches and impact tools compatible with a 3/4" drive. The polished chrome surface simplifies maintenance and offers basic resistance to rust, extending the usable life of the tool when stored and used correctly.
Suitable for
Automotive repair and wheel nut removal
Industrial machinery maintenance
Construction and heavy equipment servicing
Workshop and professional mechanic use
Key specifications
Socket size: 21 mm
Drive size: 3/4" square drive
Point count: 6-point geometry for hex fasteners
Finish: chrome-plated surface
Intended use: manual and pneumatic/impact torque applications
How to use
Select the 21 mm socket for appropriately sized hex fasteners and attach it securely to a compatible 3/4" drive ratchet, breaker bar, or impact wrench. Ensure the fastener and socket are clean and free of debris before applying torque. When using pneumatic or impact tools, follow the tool manufacturer’s torque and speed recommendations to avoid over-torquing or damaging fasteners. After use, wipe the socket clean and store it in a dry place to maintain the chrome finish.
Usage recommendations
Use the socket with the correct drive tools and safety equipment; inspect the socket for wear or damage before each use. For high-torque or stubborn fasteners, apply controlled, incremental torque rather than sudden impacts to reduce the risk of fastener damage. Store in a tool tray or box to prevent corrosion and deformation.

## FAQ

### How much does the Socket 21 mm Rockforce RF-56521 cost, and is it available for purchase?

The price is 7.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 50 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 13.07.2026 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/11728422/67108562_large.webp