# Impact Socket Wrench PRO Cylinder 66370 (21) — PRO brand, model 66370, 21 mm

**URL:** https://aio.lv/en/product--pro-y6604021--12047264
**Data updated:** 2026-03-12 19:29 (EET)
**Category:** Tool kits and accessories
**Manufacturer:** PRO
**Manufacturer code:** Y6604021
**EAN:** 5903755129680
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 8.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--pro-y6604021--12047264

## 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

PRO Cylinder impact socket wrench model 66370 (21) is a 21 mm impact socket designed for use with pneumatic or electric impact wrenches. Manufactured by PRO, this socket is intended for loosening and tightening nuts and bolts under high torque, suitable for automotive maintenance, tyre service and industrial repair tasks. It fits standard 1/2" drive impact tools and is built for repeated heavy-duty use.

## Long description

PRO Cylinder impact socket wrench model 66370 (21) is a 21 mm impact socket designed for use with pneumatic or electric impact wrenches. It fits standard 1/2" drive impact tools and is built for repeated heavy-duty use in automotive maintenance, tyre service and industrial repair environments. The socket's cylinder form factor and 21 mm opening provide secure engagement with hexagonal nuts and bolts while allowing access in confined spaces typical of wheel hubs and machinery assemblies.
Advantages
The socket is manufactured from impact-rated alloy steel to resist deformation under high torque and repeated shocks from impact tools. Heat-treated construction and a corrosion-resistant finish increase service life and maintain reliable fitment. Its precise 21 mm internal profile reduces rounding of fasteners and ensures consistent torque transfer from pneumatic or electric impact wrenches. The 1/2" drive interface is compatible with common impact tool sizes used in professional workshops.
Suitable for
Automotive wheel nut removal and installation
Tire service and brake maintenance
General mechanical assembly and disassembly under high torque
Industrial equipment repair and maintenance
Key specifications
Socket size: 21 mm
Drive type: 1/2" drive compatible with impact tools
Design: cylinder (deep/recessed profile for access)
Material: impact-rated alloy steel with heat treatment
Finish: corrosion-resistant surface treatment
Intended use: compatible with pneumatic and electric impact wrenches
How to use
Select the 21 mm PRO Cylinder impact socket and attach it securely to a 1/2" drive impact wrench. Position the socket squarely over the fastener and apply short bursts of the impact wrench while maintaining steady hand control. For loosening, start at lower torque settings if available and increase as needed; for tightening, follow torque specifications for the fastener using an appropriate torque-control method after initial engagement with the impact tool. Inspect the socket for wear or damage regularly and replace if deformation or cracking is visible.
Usage recommendations
Use appropriate personal protective equipment, including eye and hearing protection, when operating impact wrenches. Avoid using the socket with manual ratchets or extensions not rated for impact use. Store in a dry place to minimise corrosion and keep a matched set of impact-rated sockets to ensure proper fit and safe operation.

## FAQ

### How much does the Impact Socket Wrench PRO 66370 (21 mm) cost, and is it available for purchase?

The price is 10.49 € (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 PRO 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 PRO 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/12047264/67533721_large.webp