# Proline Socket Key 1/2" 6-point 21mm (MPN 9017784) - workshop socket for 1/2-inch drive

**URL:** https://aio.lv/en/product--proline-9017784--10786076
**Data updated:** 2025-12-30 12:34 (EET)
**Category:** Screwdriver Bits
**Manufacturer:** Proline
**Manufacturer code:** 9017784
**EAN:** 4750959017784
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.99 €
**Prices and availability valid until:** 2026-08-24 23:59
**Price without VAT (21%):** 3.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-9017784--10786076

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.79 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

Proline 1/2" 6-point 21mm socket key (MPN 9017784) is a workshop socket designed for use with 1/2-inch drive ratchets and breakers. The 6-point profile provides secure grip on fasteners to reduce rounding. Suitable for general mechanical and automotive tasks requiring a 21mm socket, it offers reliable fit and straightforward use in maintenance and repair jobs.

## Long description

Proline 1/2" 6-point 21 mm socket (MPN 9017784) is a workshop socket designed for use with 1/2-inch drive ratchets and breakers. Made from chrome-vanadium steel and subjected to precise hardening and tempering processes, this 21 mm socket meets high durability standards and provides a reliable fit for 21 mm fasteners in mechanical and automotive maintenance tasks.
Advantages
The socket is manufactured from chrome-vanadium steel and heat-treated to ensure appropriate hardness and strength. Its 6-point profile reduces the risk of rounding fastener corners, and the specially profiled contact edges incorporate the PRO-DRIVE system to minimize concentrated point loads and protect the fastener head and flat edges from excessive wear.
Suitable for
 Mechanical repairs and general workshop maintenance
 Automotive maintenance and servicing
 Tasks requiring a 21 mm 6-point socket with 1/2" drive
Key specifications
 Brand: Proline
 Model / MPN: 9017784
 Drive size: 1/2" (12.7 mm)
 Profile: 6-point
 Socket size: 21 mm
 Material: Chrome-vanadium steel
 EAN: 4750959017784
How to use
Attach the 21 mm socket to a compatible 1/2" drive ratchet or breaker bar. Engage the socket fully onto the fastener head before applying torque. Use steady, controlled force to avoid sudden impacts; when loosening tight fasteners, apply a gradual, increasing torque until the fastener turns. After use, inspect the socket for wear and store in a dry toolbox to prevent corrosion.
Usage recommendations
For best results, pair this 6-point 21 mm socket with tools that match the 1/2" drive size and avoid using damaged or rounded fasteners. Do not exceed the rated capacity of your drive tool, and perform regular inspections to ensure socket integrity.

## FAQ

### How much does the Proline Socket 1/2" 6-point 21mm cost, and is it available for purchase?

The price is 3.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 97 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 03.08.2026 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

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