# Drill bit set Rittal 4050.812 — centering drills, M4 thread support, for aluminium/plastic/stainless steel/steel, 3 pcs

**URL:** https://aio.lv/en/product--rittal-4050812--12401082
**Data updated:** 2026-04-29 13:49 (EEST)
**Category:** Drill Bits
**Manufacturer:** Rittal
**Manufacturer code:** 4050812
**EAN:** 4028177704077
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 133.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 110.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rittal-4050812--12401082

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Rittal 4050.812 is a set of three centering drill bits designed for precise hole starts and thread preparation. Compatible with aluminium, plastic, stainless steel and steel, the drills support M4 thread size and are intended for metalworking, panel fabrication and enclosure assembly tasks where accurate centering and reliable thread starts are required.

## Long description

Rittal 4050.812 is a set of three centering drill bits designed to provide reliable hole starts and correct thread alignment for M4 applications. These centering drills are suitable for use in aluminium, plastic, stainless steel and steel, and are intended for tasks such as metalworking, panel fabrication and enclosure assembly where precise positioning and clean thread entry are important.
Advantages
The set contains three centering drills engineered to establish accurate pilot points that reduce wandering and improve subsequent tapping quality. Their geometry supports M4 thread starts, helping to ensure consistent engagement of taps and threaded fasteners. Compatibility with a range of materials — from softer plastics and aluminium to harder stainless steel and steel — makes this set versatile for workshop and production environments.
Suitable for
Preparing accurate pilot holes for M4 threaded fasteners
Panel fabrication and assembly of enclosures and housings
General metalworking where centered hole starts are required
Drilling starting points in plastic components to prevent cracking
When it may not be suitable
This centering drill set is specifically geared toward establishing pilot points and supporting M4 thread starts; it is not a complete tapping kit and does not include taps or thread-cutting tools. It may not be appropriate for applications requiring larger or smaller thread sizes, non-M4 thread profiles, or specialized coatings or geometries for very high-speed machining or abrasive materials.
Key specifications
Tool type: centering drill bits (pilot drills)
Number of pieces: 3
Supported thread size: M4 (for thread start support)
Suitable materials: aluminium, plastic, stainless steel, steel
How to use
Clamp the workpiece securely and mark the intended hole position. Fit a centering drill from the set in the drill chuck or collet, ensuring correct concentric mounting. Use low to moderate spindle speed and steady feed to create a small, accurately centered pilot point. Once the pilot point is established, remove the centering drill and proceed with the appropriate drill or tap for the final hole and thread cutting. For plastics, use reduced speed and gentle feed to avoid melting or chipping.
What to consider before purchase
Intended thread size: set supports M4 thread starts only
Material compatibility: suited for aluminium, plastic, stainless steel and steel
Set contents: contains three centering drill bits; taps are not included
Machine and chuck compatibility: verify shank diameter and chuck type fit your drill or machine
Usage recommendations
Use appropriate cutting fluid when working with steel or stainless steel to extend tool life and improve finish. Start at low speed when centering in plastic or thin-walled materials to prevent deformation. Inspect pilot points for wear and replace centering drills when accuracy degrades to maintain consistent thread starts.

## Specifications

| Feature | Value |
|---|---|
| Suitable for materials | Aluminium, Plastic, Stainless steel, Steel |
| Number of drill bits | 3 pc(s) |
| Thread size supported | M4 |
| Drill bit type | Centering drill bit |

## FAQ

### How much does the Rittal 4050.812 centering drill bits, 3 pcs cost, and is it available for purchase?

The price is 133.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 34 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 13.07.2026 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 Rittal 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 Rittal 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/12401082/68689694_large.webp