# Socket Bit Proline 1/2" Hex Impact H17 x 78mm — model 18438

**URL:** https://aio.lv/en/product--proline-18438--11952095
**Data updated:** 2026-03-11 13:49 (EET)
**Category:** Screwdriver Bits
**Manufacturer:** Proline
**Manufacturer code:** 18438
**EAN:** 5903755184382
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 12.39 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-18438--11952095

## 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 1/2" hex impact socket bit, model 18438, size H17 with 78 mm length. Designed for use with 1/2" drive impact wrenches and ratchets, this hex bit provides a hexagonal H17 profile for fastening and loosening bolts and screws. Suitable for automotive, mechanical and maintenance tasks that require durable, impact-rated sockets.

## Long description

Proline 1/2" Hex Impact Socket Bit H17 x 78mm is a single-piece hexagon bit designed for use with 1/2" drive impact wrenches and ratchets. The H17 profile fits hex bolts and fasteners with a 17 mm across-flats dimension. With a 78 mm overall length, this impact-rated socket bit provides reach into recessed fasteners while maintaining compatibility with common impact tools. The bit is intended for repetitive fastening and loosening operations where a durable, impact-capable accessory is required.
Advantages
The impact socket bit is manufactured to withstand the torsional shocks generated by pneumatic and electric impact wrenches, reducing the risk of rounding fastener heads. Its 1/2" drive interface ensures secure connection to standard impact sockets and adapters. The extended 78 mm length improves access to bolts located in tight or recessed areas without sacrificing torque transfer. The hex H17 profile offers stable engagement with 17 mm hex fasteners for consistent performance in assembly and repair tasks.
Suitable for
 Automotive repair: wheel, suspension and engine fasteners
 Mechanical assembly and disassembly
 Maintenance tasks in workshops and industrial environments
 Work requiring extended reach to recessed hex bolts
Key specifications
 Drive size: 1/2" (0.5 inch) compatible with 1/2" impact drives
 Tip profile: hexagon (H17) for 17 mm fasteners
 Overall length: 78 mm
 Intended use: impact-rated for pneumatic and electric impact tools
 Material and finish: designed for strength and wear resistance (manufacturer standard)
How to use
Select the Proline H17 impact socket bit and secure it in the 1/2" drive chuck or onto a compatible adapter. Ensure the bit is fully seated before operating the impact wrench or ratchet. Place the hex tip onto the fastener, apply steady contact, and operate the tool using appropriate torque settings and safe working technique. After use, inspect the hex profile for wear and replace the bit if deformation or significant rounding is observed.
Usage recommendations
Use with 1/2" impact-rated wrenches and adapters; avoid using hand-only ratchets for heavy impact applications. Match the bit to the correct 17 mm fastener to minimize rounding. Store in a dry toolbox and replace if the hex edges become rounded or damaged.

## FAQ

### How much does the Proline 1/2" Hex Impact Socket H17 x 78mm 18438 cost, and is it available for purchase?

The price is 14.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 100 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

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