# Impact socket accessory Proline ZR18921, 50 mm length

**URL:** https://aio.lv/en/product--proline-18921--11729257
**Data updated:** 2026-03-08 11:32 (EET)
**Category:** Screwdriver Bits
**Manufacturer:** Proline
**Manufacturer code:** 18921
**EAN:** 5903755011251
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 12.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-18921--11729257

## 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 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Proline ZR18921 impact socket accessory — a 50 mm length impact-rated socket component designed for use with impact wrenches and pneumatic or electric fastening tools. Provides a robust connection between tool and socket for heavy-duty fastening tasks. Suitable for automotive repair, industrial maintenance and construction where impact-rated accessories are required.

## Long description

Proline ZR18921 impact socket accessory, 50 mm length, is an impact-rated hexagonal socket component designed for use with impact wrenches and pneumatic or electric fastening tools. Manufactured from chromium-molybdenum (CrMo) steel, it offers increased tensile strength and yield point compared with ordinary chromium-vanadium sockets. The Proline socket features rounded internal angles and the PRO-DRIVE profiling to reduce point loads on fastener edges and to extend service life under heavy-duty and variable-load applications.
Advantages
The CrMo steel construction delivers higher tensile strength and improved durability for repeated impact loading and demanding industrial or automotive tasks. The PRO-DRIVE rounded open angles mitigate stress concentrations on bolt heads and the socket's internal edges, which helps prevent wall failure and allows higher torque transfer. The square drive interface is compatible with common locking mechanisms on pneumatic impact tools, ensuring secure connection during operation. The 50 mm length provides a balance between reach and control for tightening and loosening fasteners in confined and exposed positions.
Suitable for
Automotive repair and maintenance — wheel, suspension, and engine fasteners
Industrial maintenance and machinery assembly
Construction fastening tasks requiring impact-rated accessories
Pneumatic and electric impact wrench applications
Key specifications
Type: hexagonal impact socket accessory
Material: chromium-molybdenum (CrMo) steel
Length: 50 mm
Drive end: square drive compatible with common locking mechanisms on impact tools
Internal profiling: PRO-DRIVE rounded open angles to reduce point loads
Application rating: impact-rated for pneumatic and electric fastening tools
How to use
Attach the Proline impact socket accessory to a compatible impact wrench or drive extension by aligning the square drive and engaging the tool's locking mechanism. Ensure the socket is fully seated before applying torque. Use the socket with appropriate-sized fasteners, and apply progressive torque settings on electric or pneumatic tools according to the fastener manufacturer's recommendations. After use, inspect the socket for wear, cracks, or deformations and replace if any damage is detected.
Usage recommendations
Use personal protective equipment and follow tool manufacturer guidelines. Match the socket size exactly to the fastener to avoid rounding. Avoid using the impact socket with hand tools not rated for impact use, and store in a dry place to prevent corrosion.

## Specifications

| Feature | Value |
|---|---|
| Quantity | 1 |
| Length | 50 mm |

## FAQ

### How much does the Impact socket accessory Proline ZR18921 cost, and is it available for purchase?

The price is 15.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 Proline 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 Proline 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/11729257/67176229_large.webp