# Drill bit SDS-Max 30 x 400 x 520 mm MAX-4, Bosch

**URL:** https://aio.lv/en/product--bosch-1778021--10886786
**Data updated:** 2026-03-31 13:04 (EEST)
**Category:** Drill Bits
**Manufacturer:** Bosch
**Manufacturer code:** 1778021
**EAN:** 3165140564250
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 41.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 34.29 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bosch-1778021--10886786

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.06.2026 | free |
| Pickup points | 01.07.2026 | 1.99 EUR |
| Courier delivery to door | 01.07.2026 | 4.99 EUR |

## Summary description

SDS-Max drill bit 30 x 400 x 520 mm MAX-4 by Bosch for use with SDS-Max rotary hammers. Four-flute design improves dust removal and drilling stability in concrete and masonry. Dimensions indicate 30 mm diameter, 400 mm working length and 520 mm total length. Intended for heavy-duty chiseling and through-drilling applications.

## Long description

SDS-Max drill bit 30 x 400 x 520 mm MAX-4 from Bosch is designed for heavy-duty drilling and chiseling in concrete and masonry when used with SDS-Max rotary hammers. The bit features a four-flute geometry that improves dust evacuation and maintains drilling stability at large diameters. The dimensions signify a 30 mm cutting diameter, 400 mm working length and 520 mm total length, making it suitable for through-drilling and deeper anchor or rebar clearance tasks.
Advantages
The four-flute design enhances dust removal from the hole and reduces friction during rotation, helping to maintain cutting efficiency and consistent alignment. Reinforced head geometry and robust steel construction increase resistance to wear during repeated impact drilling in concrete and masonry. The extended working length allows deeper penetration while the overall length provides enough shank engagement in the tool for secure connection and improved power transfer.
Suitable for
 Drilling through concrete for anchor installation
 Chiseling-start holes and clearance drilling in reinforced concrete
 Drilling masonry walls and blocks for mechanical fixings
 Applications requiring deep or through-holes where long working length is needed
Key specifications
 Cutting diameter: 30 mm
 Working length: 400 mm
 Total length: 520 mm
 Shank type: SDS-Max compatible
 Flute design: four-flute for improved dust evacuation
 Material: high-strength steel with reinforced tip geometry
 Intended material: concrete and masonry
How to use
Insert the SDS-Max shank fully into the rotary hammer chuck until it locks. Select hammer-drilling mode and position the bit perpendicular to the work surface for initial penetration. Apply steady axial pressure and allow the rotary hammer to perform the impact action; avoid excessive side load to reduce bit wear. For through-drilling, periodically withdraw the bit to clear accumulated dust if progress slows, or use continuous drilling at moderate feed to maintain dust evacuation through the flutes.
Usage recommendations
Use appropriate personal protective equipment including eye protection, hearing protection and dust mask. Match rotary hammer power and impact energy to the bit size and the hardness of the substrate. For reinforced concrete, use controlled feed and coolant is not required; regularly inspect the bit for tip wear and replace when cutting performance declines.

## FAQ

### How much does the Drill bit SDS-Max 30x400x520 MAX-4 Bosch cost, and is it available for purchase?

The price is 41.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 33 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 26.06.2026 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 Bosch 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 Bosch 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/10886786/68573354_large.webp