# Drill bit KWB 511820 — spiral cutting drill bit, diameter 20 mm, 1 piece

**URL:** https://aio.lv/en/product--kwb-511820--12229682
**Data updated:** 2026-03-29 16:16 (EEST)
**Category:** Home Goods Accessories
**Manufacturer:** KWB
**Manufacturer code:** 511820
**EAN:** 4009315118208
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 28.49 €
**Prices and availability valid until:** 2026-08-11 23:59
**Price without VAT (21%):** 23.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kwb-511820--12229682

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.08.2026 | free |
| Pickup points | 13.08.2026 | 1.89 EUR |
| Courier delivery to door | 13.08.2026 | 4.99 EUR |

## Summary description

KWB 511820 is a spiral cutting drill bit with a 20 mm diameter, supplied as a single piece. Intended for use with drills, this cutting-type bit provides axial penetration using a spiral flute design to remove material. Suitable for general drilling tasks where a 20 mm spiral drill is required; practical for DIY, repair and woodworking applications.

## Long description

KWB 511820 is a spiral cutting drill bit with a 20 mm diameter supplied as a single piece. Designed for use with standard drills, this wood drill bit features a single spiral flute and a centre point with two cutting wings to ensure precise, break-out free holes in soft and hardwoods. The bit is made of chromium-vanadium (CrV) steel with a chemical black finish and chamfer ground cutting edges. With a length of 250 mm and a cylindrical shank, it is intended for extra-long drilling tasks in beams and other wooden workpieces.
Advantages
The KWB 511820 combines industrial-quality materials and geometry: accurately formed CrV steel provides durability while the centre point and two cutting wings ensure accurate positioning and clean hole exits. The single spiral flute removes chips efficiently along the bit body, reducing clogging during deep drilling. The chamfer-ground cutting edges and chemical black surface treatment contribute to consistent cutting performance and corrosion resistance.
Suitable for
 Drilling through softwoods and hardwoods
 Creating clean through-holes in beams and structural timber
 Long-reach drilling for joinery and carpentry tasks
 DIY repair and woodworking projects where a 20 mm spiral bit is required
Key specifications
 Drill bit type: spiral cutting wood bit with centre point and two cutting wings
 Diameter: 20 mm
 Overall length: 250 mm
 Material: chromium-vanadium (CrV) steel
 Shank type: cylindrical
 Finish: chemical black
 Cutting geometry: chamfer-ground edges, single spiral flute
 Quantity: 1 piece
How to use
Secure the KWB 511820 in the drill chuck ensuring the cylindrical shank is held firmly. Mark the drilling position and align the centre point for accurate start-up. Apply steady axial pressure and run the drill at an appropriate speed for the wood species being drilled—lower speeds for hardwoods, medium speeds for softwoods. Withdraw the bit periodically on deep holes to clear chips and avoid overheating. After use, clean off wood chips and store the bit in a dry place.
Usage recommendations
Use appropriate personal protective equipment such as safety glasses and hearing protection. For best results in hardwood and long-reach drilling, use moderate feed pressure and avoid excessive speed to extend tool life. If drilling through treated or abrasive materials, check the bit for wear regularly and replace when cutting performance declines.

## Specifications

| Feature | Value |
|---|---|
| Product colour | Black |
| Length | 250 mm |
| Proper use | Drill |
| Working length | 185 mm |
| Suitable for materials | Wood |
| Drill bit diameter | 20 mm |
| Shank shape | Cylindrical shank |
| Number of drill bits | 1 pc(s) |
| Drill bit type | Spiral cutting drill bit |

## FAQ

### How much does the Drill bit KWB 511820 — spiral 20 mm cost, and is it available for purchase?

The price is 28.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 10.08.2026 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/12229682/68113310_large.webp