# Drill Chuck Key Proline 13 mm 10-tooth model 31390

**URL:** https://aio.lv/en/product--proline-31390--11876785
**Data updated:** 2026-03-09 20:41 (EET)
**Category:** Power Tools Accessories
**Manufacturer:** Proline
**Manufacturer code:** 31390
**EAN:** 5903755313904
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.49 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 5.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-31390--11876785

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

Drill chuck key Proline 31390 is a manual key designed to tighten and loosen drill chucks with a 13 mm gear diameter and 10 teeth. It provides mechanical engagement for secure tightening of drill bits in hand drills and drill presses. Suitable for workshop, construction and repair tasks where a reliable chuck key is required.

## Long description

Drill chuck key Proline 13 mm 10-tooth model 31390 is a manual key engineered to engage and rotate the geared ring of compatible drill chucks. With a 13 mm gear diameter and 10 teeth, the key delivers positive mechanical engagement for tightening and loosening drill bits in handheld drills and drill presses. The tool is intended for situations that require secure clamping of bits and predictable torque transfer when changing accessories.
Advantages
The 13 mm, 10-tooth configuration ensures consistent engagement with matching chuck gears, reducing slippage during tightening. Manufactured to simple functional requirements, the key offers straightforward compatibility with chucks that match its gear dimensions and tooth count. Its mechanical design provides reliable manual torque transfer without relying on electronics or hydraulics, making it suitable for workshop, construction and repair environments.
Suitable for
 Tightening and loosening drill bits in hand drills
 Use with drill presses that accept a 13 mm, 10-tooth key
 Workshop maintenance and tool stations
 Construction and on-site equipment repair
 General-purpose domestic repairs requiring a matching chuck key
Key specifications
 Gear diameter: 13 mm
 Number of teeth: 10
 Type: Manual chuck key for geared chucks
 Intended use: Tightening and loosening drill chuck jaws
 Compatibility: Chucks with matching gear diameter and tooth count
How to use
Insert the pin end of the chuck key into the geared socket on the drill chuck so that the teeth mesh fully with the chuck gear. Turn the key clockwise to tighten the jaws around the drill bit and counterclockwise to loosen. Apply steady manual force and avoid sudden impacts; ensure the bit is centered in the jaws before final tightening. For machine-mounted chucks, keep the drill or press powered off while changing bits to prevent accidental rotation.
Usage recommendations
Regularly inspect the key and chuck gear for wear or damaged teeth and replace the key if engagement becomes loose. Keep the key clean and free of heavy grease or debris that can impair tooth contact. Use the key only with compatible chucks to avoid premature wear of teeth and to maintain secure clamping of drill bits.

## FAQ

### How much does the Drill Chuck Key Proline 31390 13 mm 10-tooth cost, and is it available for purchase?

The price is 6.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 200 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 17.07.2026 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/11876785/67293738_large.webp