# Enclosure accessory Rittal AS 4055.778 metallic — round punch die 18.0 mm

**URL:** https://aio.lv/en/product--rittal-4055778--12401203
**Data updated:** 2026-04-29 13:49 (EEST)
**Category:** Tool kits and accessories
**Manufacturer:** Rittal
**Manufacturer code:** 4055778
**EAN:** 4028177920699
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 73.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 61.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rittal-4055778--12401203

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Rittal AS 4055.778 is a metallic enclosure accessory — a round punch die with an 18.0 mm diameter. Designed for use with enclosure punching tools and press systems, it provides a precise circular cut for cable entries, conduit fittings and panel openings. Suitable for professional electrical and control cabinet fabrication and retrofitting.

## Long description

Rittal AS 4055.778 metallic — round punch die 18.0 mm is a precision tool insert for use with compatible enclosure punching tools and press systems. The die creates clean, circular 18.0 mm openings suitable for cable entries, conduit fittings and panel ports in sheet-metal enclosures and busbars. The female die is designed to be used together with the corresponding male die to produce accurate punched holes for professional electrical and control cabinet fabrication and retrofitting.
Advantages
This metallic round punch die delivers consistent 18.0 mm hole diameters with minimal burr and distortion when paired with the matching male die and a suitable press. Manufactured to meet industrial tolerances, it facilitates repeatable results for series production and maintenance work. Its robust construction supports frequent use in workshop and on-site environments, helping reduce secondary finishing and rework.
Suitable for
 Punching round cable entries and conduit openings in sheet-metal enclosures
 Creating 18.0 mm holes in busbars when used with the corresponding male die
 Panel cutouts for control cabinets, distribution boxes and electrical housings
 Retrofit and repair tasks where precise round holes are required
When it may not be suitable
This die is intended specifically for 18.0 mm round holes and requires the matching male die and an appropriate punching press or tool. It is not suitable for forming non-circular shapes or for use as a standalone cutting tool. Very thick materials or hardened steels outside the die and press capacity may exceed its intended use and produce poor results or damage the die.
Key specifications
 Hole diameter: 18.0 mm
 Material: metallic construction suitable for industrial punching
 Type: female (must be used with matching male die)
 Application: sheet-metal enclosures, busbars and panel openings
How to use
Install the female die into the compatible die holder of the punching tool or press, then fit the corresponding male die in the mating position. Position the sheet or busbar so the punch aligns with the required hole location. Operate the press according to the tool manufacturer's instructions to perform the punching action. After punching, inspect the hole and remove any light burr if necessary; avoid using the die on materials thicker than the press or die specification to prevent damage.
What to consider before purchase
 Verify compatibility with your punching tool or press and that you have the matching male die
 Confirm the 18.0 mm hole diameter matches the intended cable gland, conduit or fitting
 Check the maximum material thickness and material types recommended for the die and your press
 Assess expected production volume to determine if the die material and durability meet your needs
Usage recommendations
Use the die only with the corresponding male die and a press rated for the material and thickness being punched. Maintain the die by keeping mating surfaces clean, applying light lubrication if recommended by the press manufacturer, and inspecting regularly for wear to ensure consistent 18.0 mm holes and long service life.

## Specifications

| Feature | Value |
|---|---|
| Package weight | 311 g |
| Product colour | Metallic |
| Hole diameter | 18 mm |

## FAQ

### How much does the Rittal AS 4055.778 round punch die 18.0 mm cost, and is it available for purchase?

The price is 73.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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 15.07.2026 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

### Where can I download the instructions for Rittal AS 4055.778 round punch die 18.0 mm?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/12401203/68689568_large.webp