# Wood Drill Bit GRAPHITE 57H366 — Hexagonal shank, Spiral flute, 20 mm

**URL:** https://aio.lv/en/product--graphite-57h366--11357155
**Data updated:** 2026-03-07 19:59 (EET)
**Category:** Drill Bits
**Manufacturer:** GRAPHITE
**Manufacturer code:** 57H366
**EAN:** 5902062573667
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 9.08 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--graphite-57h366--11357155

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

GRAPHITE wood drill bit model 57H366 is a 20 mm diameter spiral-fluted bit with a hexagonal shank designed for drilling in wood. The spiral flute evacuates chips while the hex shank provides secure grip in quick-change chucks or bit holders. Suitable for general woodworking tasks, furniture assembly and installation where straight, clean holes in timber are required.

## Long description

GRAPHITE 57H366 wood drill bit is a 20 mm diameter spiral-fluted drill designed for clean, efficient drilling in timber and wood-based materials. The bit combines a spiral flute for effective chip evacuation with a hexagonal shank that fits quick-change chucks and bit holders, enabling fast tool changes and a secure grip. It is intended for general woodworking tasks where straight, accurate holes are required.
Advantages
The spiral flute removes wood chips from the bore to reduce clogging and heat build-up, improving drilling speed and hole quality. The hexagonal shank prevents slippage in quick-change systems and ensures positive engagement in impact drivers or bit holders. A 20 mm cutting diameter provides a balance between substantial hole size and manageable torque demand, suitable for most hand drills and cordless drivers. The bit's geometry is aimed at producing straight holes with reduced tear-out on exit surfaces.
Suitable for
Drilling through softwood and hardwood
Furniture assembly and dowel or bolt hole preparation
Installing fixtures, door hardware and carpentry joints
Working with plywood, chipboard and laminated boards
Key specifications
Drill diameter: 20 mm
Shank type: hexagonal shank for quick-change chucks and bit holders
Flute type: spiral flute for chip evacuation
Primary use: woodworking and general timber drilling
How to use
Secure the hexagonal shank in a compatible chuck or quick-change holder, ensuring it is fully seated and locked. Mark the drilling point on the workpiece and, if needed, clamp the workpiece to prevent movement. Start drilling at low speed to establish the hole, then increase speed as appropriate for the material. Withdraw periodically on deep holes to clear chips if necessary. Apply steady, even pressure; avoid excessive force that can cause burning or bit deflection. After drilling, inspect the hole for cleanliness and deburr any sharp edges.
Usage recommendations
Use appropriate personal protective equipment such as safety glasses and hearing protection. For best results, choose drill speeds and feed rates suited to the wood species and thickness. When working with laminated or veneered boards, consider backing the workpiece to reduce exit tear-out. Store the bit in a dry place to prevent corrosion and check for wear before use.

## FAQ

### How much does the Wood Drill Bit GRAPHITE 57H366 20 mm cost, and is it available for purchase?

The price is 10.99 € (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 07.07.2026 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 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

## Image

https://aio.lv/img/cache/product/11357155/65827359_large.webp