# Diamond Crown core bit Flex RM-TX 1 1/4" 250 mm x 450 mm, dry

**URL:** https://aio.lv/en/product--flex-10215129022--11718835
**Data updated:** 2026-03-08 11:21 (EET)
**Category:** Drill Bits
**Manufacturer:** Flex
**Manufacturer code:** 10215129022
**EAN:** 4820245283435
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 316.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 261.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--flex-10215129022--11718835

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Diamond crown core bit Flex RM-TX 1 1/4" with outer diameter 250 mm and length 450 mm for dry drilling. Designed for core drilling applications where a 1 1/4" thread connection is required. Suitable for cutting reinforced concrete, masonry and similar hard materials in construction, renovation and sampling tasks.

## Long description

The Diamond Crown core bit Flex RM-TX 1 1/4" 250 mm x 450 mm, dry is a segmented diamond core bit designed for dry core drilling with a 1 1/4" (RM-TX) thread connection. With a 250 mm outer diameter and a 450 mm overall length, this core bit is intended for cutting reinforced concrete, masonry and similar hard materials encountered in construction, renovation and sampling tasks. It is configured for use in applications that require a robust diamond cutting edge and compatibility with rotary drilling systems that accept the specified thread type.
Advantages
The segmented diamond rim provides efficient material removal and reduced heat buildup during dry drilling, improving cutting speed on dense substrates. The 1 1/4" thread connection ensures secure attachment to compatible drilling rigs and handheld core drills. A 450 mm length offers extended reach for deeper cores while the 250 mm diameter balances large hole capacity with manageable torque for most professional drilling equipment.
Suitable for
 Dry core drilling of reinforced concrete
 Drilling through brick, blockwork and masonry
 Sampling and taking concrete cores for testing
 Construction and renovation projects requiring large-diameter holes
Key specifications
 Outer diameter: 250 mm
 Overall length: 450 mm
 Connection type: 1 1/4" (RM-TX) male thread
 Cutting type: segmented diamond rim for dry use
 Intended materials: reinforced concrete, masonry and similar hard substrates
How to use
Mount the core bit firmly onto a drill or core rig that accepts a 1 1/4" RM-TX threaded connection, following the equipment manufacturer's tightening instructions. Position the drill perpendicular to the work surface and start at low speed to establish the cutting line, then increase to recommended operating speed for your machine while applying steady, even pressure. Since the bit is designed for dry drilling, allow intermittent pauses to avoid overheating: withdraw the core bit periodically to clear dust and cool the cutting segments. Use appropriate dust extraction or respiratory protection to control airborne particles during dry coring.
Usage recommendations
For best results, match drill speed and feed rate to the material hardness and machine capability, use tapered starts if available to reduce initial torque, and always wear protective equipment including eye, ear and respiratory protection. Consider using compatible water-feed variants or wet-drilling alternatives when dust suppression or extended tool life is required.

## FAQ

### How much does the Diamond crown core bit Flex RM-TX 1 1/4" 250x450 mm cost, and is it available for purchase?

The price is 316.99 € (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 06.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Diamond crown core bit Flex RM-TX 1 1/4" 250x450 mm 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 Flex 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 Flex 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/11718835/67100169_large.webp