# Socket 1/2" 21 mm Hartsson 12-point model 17C321Z

**URL:** https://aio.lv/en/product--hartsson-17c321z--11728832
**Data updated:** 2026-03-08 11:32 (EET)
**Category:** Screwdriver Bits
**Manufacturer:** Hartsson
**Manufacturer code:** 17C321Z
**EAN:** 5902628171214
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.99 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 4.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hartsson-17c321z--11728832

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

1/2" drive 21 mm 12-point socket by Hartsson, model 17C321Z. Designed for use with 1/2" ratchets and wrenches, this 12-point socket provides improved engagement on hexagonal fasteners and limited-access bolts. Suitable for automotive repair, machinery maintenance and general mechanical work. Made to fit standard 1/2" drive tools and deliver reliable torque transfer.

## Long description

Hartsson 1/2" 21 mm 12-point socket model 17C321Z is a hand tool designed for use with 1/2" drive ratchets and breaker bars. The 12-point configuration allows multiple engagement positions on hexagonal fasteners and helps access bolts in confined spaces. Manufactured to fit standard 1/2" drive tools, this 21 mm socket is intended for routine mechanical tasks where reliable torque transfer and secure fit are required.
Advantages
The 12-point geometry provides improved bite on hex fasteners and enables use at smaller indexing angles compared with 6-point sockets. Precision-machined internal faces ensure consistent contact with fastener flats, reducing rounding and slippage. Compatibility with 1/2" drive tools delivers broad applicability across ratchets, torque wrenches and extension bars. The socket's size and drive combination make it suitable for medium to heavy torque applications common in automotive and machinery maintenance.
Suitable for
 Automotive repair tasks such as wheel and suspension fasteners
 Machinery maintenance and industrial equipment servicing
 General mechanical and workshop use where 21 mm fasteners are present
 Situations with limited access where multiple engagement positions are needed
Key specifications
 Drive size: 1/2" (12.7 mm)
 Socket size: 21 mm
 Point configuration: 12-point
 Compatibility: designed for use with standard 1/2" drive ratchets, torque wrenches and extensions
 Intended application: medium to heavy torque mechanical fastening
How to use
Select the 21 mm 12-point socket and attach it securely to a compatible 1/2" drive ratchet or wrench. Position the socket over the fastener, ensuring full contact on the flats, and apply torque gradually. For tightened or seized fasteners use a breaker bar or appropriate leverage technique while maintaining correct alignment to avoid rounding. Use extensions or universal joints when access is restricted, and pair with a torque wrench when specific torque values are required.
Usage recommendations
Inspect the socket regularly for wear or deformation before use. Use the 12-point socket for bolts and nuts that match its geometry; for high-torque or damaged fasteners consider a 6-point socket to reduce the risk of rounding. Store in a dry toolbox and avoid excessive impact to prolong service life.

## FAQ

### How much does the Hartsson 1/2" 21 mm 12-point socket 17C321Z cost, and is it available for purchase?

The price is 5.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 40 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 15.07.2026 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 Hartsson 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 Hartsson 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/11728832/67108952_large.webp