# KWB 513904 Wood Twist Drill Bit 4 mm

**URL:** https://aio.lv/en/product--kwb-513904--11083230
**Data updated:** 2026-05-09 13:54 (EEST)
**Category:** Home Goods Accessories
**Manufacturer:** KWB
**Manufacturer code:** 513904
**EAN:** 4009315139043
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 12.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kwb-513904--11083230

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.99 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The KWB 513904 is a high-quality wood twist drill bit designed for precise drilling applications. With a diameter of 4 mm and a total length of 50 mm, this drill bit is engineered for efficient material removal and clean holes in various wood types. It is an essential tool for woodworking projects, offering durability and reliable performance for both professional craftsmen and DIY enthusiasts.

## Long description

The KWB 513904 wood twist drill bit is a precision-engineered tool designed for accurate drilling in various wood types. With a diameter of 4 mm and a total length of 50 mm, this drill bit is manufactured from high-quality CrV steel, ensuring durability and consistent performance. It features a 1/4" hexagon shank compatible with ISO 1173 E 6.3 standards, making it suitable for use with cordless drivers, drills, and standard bit holders. The bit is chemically blackened and features ground spirals, a center point, and two cutting wings to ensure clean, break-out free holes.
Advantages
This drill bit offers exceptional precision due to its specialized center point and dual cutting wings, which prevent wandering and ensure clean entry and exit points in the material. The use of high-quality CrV steel provides excellent wear resistance, while the ground spirals facilitate efficient chip removal during the drilling process. Its standardized 1/4" hexagon shank allows for rapid tool changes, making it highly versatile for users who frequently switch between different drilling and driving tasks.
Suitable for
Drilling precise holes in softwoods
Drilling precise holes in hardwoods
Use with cordless screwdrivers and drills
Projects requiring quick bit changes via 1/4" hex holders
When it may not be suitable
This drill bit is specifically designed for wood applications and is not suitable for drilling into metal, masonry, or concrete. Using this tool on hard materials will cause rapid dulling of the cutting edges and potential damage to the bit.
Key specifications
Diameter: 4 mm
Total length: 50 mm
Material: CrV steel
Shank type: 1/4" hexagon (ISO 1173, E 6.3)
Design: Center point with 2 cutting wings
How to use
Insert the 1/4" hexagon shank of the drill bit into your cordless driver or bit holder until it is securely locked in place. Position the center point of the drill bit exactly where you intend to create the hole. Apply steady, moderate pressure while maintaining a perpendicular angle to the wood surface. Start the drill at a controlled speed to ensure the cutting wings engage properly with the wood fibers, allowing the ground spirals to clear the debris as you progress through the material.
What to consider before purchase
Verify that your drill or driver accepts 1/4" hexagon shanks
Ensure the 4 mm diameter meets the requirements of your specific project
Confirm the material being drilled is wood, as this bit is not intended for metal or stone
Usage recommendations
For the best results and to extend the lifespan of the drill bit, maintain a consistent drilling speed and avoid applying excessive lateral force, which could cause the bit to bend or snap.

## Specifications

| Feature | Value |
|---|---|
| Product colour | Stainless steel |
| Length | 50 mm |
| Proper use | Drill |
| Package type | Blister |
| Working length | 40 mm |
| Suitable for materials | Hardwood, Softwood |
| Drill bit diameter | 4 mm |
| Shank diameter | 6.35 mm |
| Shank shape | Hex shank |
| Drill bit material | Chromium-Vanadium Steel (Cr-V) |
| Number of cutting edges | 2 |

## FAQ

### How much does the KWB 513904 Wood Twist Drill Bit 4 mm cost, and is it available for purchase?

The price is 15.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 7 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 16.07.2026 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. 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 KWB 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 KWB 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/11083230/61769038_large.webp