# Diamond Core Bit Distar KORONA RS8-X 1 1/4" 102mm x 450mm for Wet Drilling

**URL:** https://aio.lv/en/product--distar-10170085224--12395058
**Data updated:** 2026-04-26 22:22 (EEST)
**Category:** Power Tools Accessories
**Manufacturer:** Distar
**Manufacturer code:** 10170085224
**EAN:** 4820245281998
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 100.49 €
**Prices and availability valid until:** 2026-08-17 23:59
**Price without VAT (21%):** 83.05 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--distar-10170085224--12395058

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.79 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

Distar KORONA RS8-X diamond core bit, model 10170085224, 1 1/4" connection, 102 mm cutting diameter and 450 mm length designed for wet drilling. Intended for fast, precise coring in concrete, reinforced concrete and masonry when used with water cooling. Suitable for use with compatible rotary core drilling rigs and stands for construction and renovation tasks.

## Long description

Distar KORONA RS8-X diamond core bit, with a 1 1/4" connection and 102 mm cutting diameter, is designed for wet drilling of concrete, reinforced concrete and masonry. The 450 mm overall length provides a balance between cutting depth and rigidity, and the segmented diamond rim and cooling channel design support efficient material removal and controlled heat dissipation when used with water. This core bit is intended for use with compatible rotary core drilling rigs and stands in construction, refurbishment and installation tasks.
Advantages
The RS8-X geometry combines a reinforced segment bond and optimized segment height to extend service life during continuous wet cutting. Water cooling reduces overheating and dust, improving cutting consistency and preserving diamond grit. The 1 1/4" threaded connection ensures compatibility with a wide range of standard core drilling arbors and rigs, while the 102 mm diameter offers a common hole size for pipework, conduits and fixture anchors.
Suitable for
Creating 102 mm diameter holes in concrete and reinforced concrete using wet drilling
Drilling openings for plumbing, electrical conduits and HVAC penetrations
Core sampling and removal of concrete plugs during renovation
When it may not be suitable
This diamond core bit is designed specifically for wet drilling. It may not perform as intended in dry drilling applications or without adequate water flow to cool and flush the cutting surface. Very abrasive or acidic materials outside typical concrete and masonry compositions can accelerate wear and reduce life expectancy.
Key specifications
Connection: 1 1/4" threaded arbor
Cutting diameter: 102 mm
Total length: 450 mm
Cutting type: segmented diamond rim for wet drilling
Intended materials: concrete, reinforced concrete, masonry
How to use
Mount the core bit onto a compatible 1 1/4" arbor and secure it to the rotary core drilling rig or stand. Position the rig accurately and start at low speed to establish the pilot engagement, then apply steady feed pressure and maintain appropriate rotational speed for the bit diameter and material. Ensure continuous water flow to the cutting face to cool the segments and flush out slurry. Withdraw periodically to clear debris if required and to inspect bit condition. After use, clean the bit and allow it to dry before storage to prevent corrosion.
What to consider before purchase
Confirm compatibility of the 1 1/4" threaded connection with your drill arbor or rig
Ensure your drilling setup supports wet cooling (water supply and slurry management)
Choose the correct diameter (102 mm) for the required hole size and any fixture clearances
Usage recommendations
For best performance, use steady, moderate feed pressure, maintain continuous water supply to the cutting face, and match drill speed to the material and hole diameter. Regularly inspect segment wear and replace the bit when cutting efficiency declines to avoid excessive load on the drill rig.

## FAQ

### How much does the Distar KORONA RS8-X Diamond Core Bit 102mm cost, and is it available for purchase?

The price is 100.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 03.08.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Distar KORONA RS8-X Diamond Core Bit 102mm be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Distar 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 Distar 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