# Diamond hollow annular drill bit, Wolfcraft 1 (7958000) – diamond cutting edge for metal and masonry

**URL:** https://aio.lv/en/product--wolfcraft-7958000--1473173
**Data updated:** 2026-03-07 10:59 (EET)
**Category:** Drill Bits
**Manufacturer:** Wolfcraft
**Manufacturer code:** 7958000
**EAN:** 4006885795808
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 71.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 59.08 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--wolfcraft-7958000--1473173

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

Diamond hollow annular drill bit by Wolfcraft, model 1 (MPN 7958000). A core/drill crown with a diamond cutting edge designed for creating clean, precise holes in hard materials. Suitable for use on masonry, concrete, tile and some metal surfaces when used with appropriate drill rigs and cooling. Commonly used for plumbing, electrical installations and construction tasks requiring accurate through-holes.

## Long description

Diamond hollow annular drill bit Wolfcraft 1 (7958000) is a core drill crown with a brazed diamond cutting edge, designed to cut precise through-holes in hard materials. The tool is intended for use with compatible drill rigs and holders and is suitable for masonry, concrete, tile and selected metal surfaces when appropriate cooling and feed rates are used. The construction features diamond segments brazed to the rim to provide long life and steady cutting performance while minimising vibration during operation.
Advantages
The diamond cutting edge provides quick, fine cuts and maintains sharpness for an extremely long service life. Vibration-free operation improves hole quality and reduces user fatigue when used with a stable drill rig. The tool is built with brazed diamond segments for durability and consistent performance. The product is supplied in a storage box on card and includes version details such as two discharge holes and an exterior conveyor screw to aid chip and cooling fluid evacuation.
Suitable for
 Creating flush and accurate through-holes in brick and masonry for electrical and plumbing installations
 Drilling clean holes in concrete and tile where minimal chipping is required
 Cutting holes in some metal applications when used with correct drilling equipment and cooling
 Installation tasks requiring vibration-reduced cutting such as socket, distribution box and cavity box mounting
Key specifications
 Cutting edge: brazed diamond segments
 Intended materials: masonry, concrete, tile, selected metals
 Tool type: hollow annular (core) drill bit / drill crown
 Design features: two discharge holes and exterior conveyor screw for chip/cooling evacuation
 Packaging: storage box on card; supplied as one hollow annular bit
How to use
Mount the hollow annular bit in a compatible drill rig or arbor according to the drill manufacturer's instructions. Secure the workpiece and align the drill to the required hole position. Use steady feed pressure and appropriate rotational speed for the material; apply a coolant or water feed when drilling masonry, concrete, tile or metal to reduce heat and extend tool life. Start drilling at low speed to establish the pilot and then increase speed as recommended by the drill rig. Withdraw periodically to clear chips if necessary, and avoid excessive side load to prevent damage to the diamond segments.
Usage recommendations
Use appropriate personal protective equipment including eye protection, hearing protection and dust control. For concrete and masonry, use continuous water supply or intermittent cooling to reduce dust and keep the diamond segments cool. For metal drilling, ensure suitable cutting fluid and lower speeds to prevent overheating. Match drill rig capacity and arbor type to the hollow annular bit to ensure stable, vibration-free operation and optimal hole quality.

## FAQ

### How much does the Wolfcraft diamond hollow annular drill bit 1 cost, and is it available for purchase?

The price is 71.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 25 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 07.07.2026 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 Wolfcraft diamond hollow annular drill bit 1 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 Wolfcraft 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 Wolfcraft 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/1473173/57968508_large.webp