# Graphite 54T555 Extended Wood Drill Bit 4 x 400 mm

**URL:** https://aio.lv/en/product--graphite-54t555--12581756
**Data updated:** 2026-07-16 19:04 (EEST)
**Category:** Drill Bits
**Manufacturer:** GRAPHITE
**Manufacturer code:** 54T555
**EAN:** 5902062113405
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.99 €
**Prices and availability valid until:** 2026-08-16 23:59
**Price without VAT (21%):** 3.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--graphite-54t555--12581756

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 04.08.2026 | free |
| Pickup points | 07.08.2026 | 1.79 EUR |
| Courier delivery to door | 07.08.2026 | 4.99 EUR |

## Summary description

The Graphite 54T555 is a professional-grade extended drill bit designed for precise drilling in wood and wood-based materials. With a diameter of 4 mm and a total length of 400 mm, this tool is ideal for deep-hole drilling applications where standard bits are insufficient. Its robust construction ensures durability and clean cutting performance, making it an essential accessory for carpentry, furniture assembly, and construction projects.

## Long description

The Graphite 54T555 extended wood drill bit is a professional-grade tool engineered for precision drilling in wood and wood-based materials. Measuring 4 mm in diameter and 400 mm in total length, this drill bit is specifically designed to reach deep areas that standard-length bits cannot access. Its robust construction provides the necessary stability for deep-hole drilling, ensuring clean and accurate results for various woodworking and construction tasks.
Advantages
This drill bit offers exceptional performance due to its specialized geometry, which facilitates efficient chip removal during deep drilling operations. The extended length allows for precise work in thick timber or complex furniture structures without the need for additional extensions. Its high-quality material composition ensures long-lasting durability and resistance to wear, maintaining sharpness even after repeated use in demanding professional environments.
Suitable for
Deep-hole drilling in solid wood
Carpentry and furniture assembly projects
Construction work involving thick wooden beams
Installation of long fasteners or cable routing through wood
When it may not be suitable
This drill bit is not intended for use on metal, concrete, or masonry, as these materials will cause rapid dulling or damage to the cutting edges. It is also not recommended for use with high-impact hammer drills, as the slender 4 mm diameter may bend or break under excessive force.
Key specifications
Diameter: 4 mm
Total length: 400 mm
Material application: Wood and wood-based materials
Design: Extended length for deep drilling
How to use
To use the Graphite 54T555, securely mount the drill bit into the chuck of your power drill or drill press. Ensure the tool is centered and tightened properly. Begin drilling at a moderate speed, applying steady and consistent pressure to allow the bit to cut through the material. Periodically retract the drill bit from the hole during the process to clear out wood chips, which prevents overheating and binding. Always ensure the workpiece is firmly clamped to avoid movement during the drilling operation.
What to consider before purchase
Verify that your drill chuck is compatible with a 4 mm shank diameter.
Ensure the 400 mm length is appropriate for the depth of your specific project.
Confirm that the material being drilled is wood or a wood-based composite.
Usage recommendations
Always wear appropriate eye protection and ensure the drill bit is sharp before starting your work. For the best results, maintain a perpendicular angle to the surface to prevent the bit from wandering or breaking.

## FAQ

### How much does the Graphite 54T555 Extended Wood Drill Bit 4x400mm cost, and is it available for purchase?

The price is 3.99 € (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 04.08.2026 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, 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 GRAPHITE 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 GRAPHITE 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