# Chuck key Proline 10/13 mm 11-tooth model 31389 for drill chucks

**URL:** https://aio.lv/en/product--proline-31389--11877026
**Data updated:** 2026-03-09 20:42 (EET)
**Category:** Power Tools Accessories
**Manufacturer:** Proline
**Manufacturer code:** 31389
**EAN:** 5903755313898
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 5.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-31389--11877026

## 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

Proline chuck key model 31389 fits 10 mm and 13 mm drill chucks and features an 11-tooth gear. Designed to tighten and loosen keyed drill chucks securely, it serves for tool maintenance and bit changes on portable and bench drills. Compact and durable, it ensures correct engagement of the chuck teeth for reliable clamping during drilling tasks.

## Long description

The Proline chuck key model 31389 is a compact tool designed to operate keyed drill chucks with 10 mm and 13 mm diameters. It features an 11-tooth gear that engages the chuck's pinion to tighten or loosen the jaws, allowing secure clamping and quick bit changes on portable and bench drills. The key's robust construction provides reliable engagement with the chuck teeth for consistent torque transfer during drilling operations.
Advantages
The 11-tooth gear profile ensures precise meshing with standard keyed chucks, reducing slippage and wear on both the key and the chuck. Compatibility with 10 mm and 13 mm chuck sizes makes the tool versatile for common consumer and workshop drills. Its compact form factor simplifies storage and handling, and the durable materials used in the key resist deformation under normal tightening loads.
Suitable for
Tightening and loosening keyed drill chucks on portable hand drills
Bit changes on drill presses and bench drills with keyed chucks
Workshop and home maintenance tasks requiring secure drill bit clamping
Key specifications
Chuck compatibility: fits 10 mm and 13 mm keyed drill chucks
Gear teeth: 11-tooth gear profile for standard keyed chucks
Function: manual tightening and loosening of keyed chucks
Form factor: compact, hand-operated key
Material characteristics: engineered for durability and resistance to deformation under normal use
How to use
Insert the gear end of the chuck key into the matching pinion hole on the keyed chuck, ensuring the teeth mesh fully. Rotate the key clockwise to tighten the chuck jaws around the drill bit or counterclockwise to loosen them and remove the bit. Apply steady, moderate force to avoid stripping the teeth; if greater torque is required, reposition the key and repeat the motion rather than forcing a single turn. After use, store the key in a tool rack or the drill's accessory holder to keep it available and prevent loss.
Usage recommendations
Use the chuck key only with compatible keyed chucks of the specified sizes and maintain clean, debris-free teeth on both the key and the chuck. Periodically inspect the key for wear or rounded teeth and replace it if engagement becomes unreliable. For safety, ensure the drill is switched off and unplugged (or battery removed) before changing bits.

## FAQ

### How much does the Proline chuck key 10/13 mm 11-tooth 31389 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

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