# KWB 248670 Cobalt HSS Twist Drill Bit 7 mm

**URL:** https://aio.lv/en/product--kwb-248670--10941304
**Data updated:** 2026-07-23 04:12 (EEST)
**Category:** Home Goods Accessories
**Manufacturer:** KWB
**Manufacturer code:** 248670
**EAN:** 4009312486706
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 20.99 €
**Prices and availability valid until:** 2026-08-22 23:59
**Price without VAT (21%):** 17.35 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kwb-248670--10941304

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.08.2026 | free |
| Pickup points | 25.08.2026 | 1.79 EUR |
| Courier delivery to door | 25.08.2026 | 4.99 EUR |

## Summary description

The KWB 248670 is a high-performance 7 mm twist drill bit made from cobalt-alloyed HSS steel. Designed for precision drilling in hard materials, this drill bit features right-hand rotation and is compatible with standard geared chucks. It provides excellent heat resistance and durability for professional and DIY metalworking applications.

## Long description

The KWB 248670 Cobalt HSS Twist Drill Bit is a high-performance tool engineered for demanding drilling tasks in hard and resilient materials. With a diameter of 7 mm, this precision-ground drill bit is manufactured from high-speed steel alloyed with 5% cobalt, ensuring exceptional hardness and thermal stability during intensive use. Its robust construction and specialized geometry make it a reliable choice for both professional metalworking and advanced DIY projects.
Advantages
The primary advantage of this cobalt-alloyed drill bit is its superior heat resistance, which prevents the tool from softening or losing its edge when working with tough, heat-conductive materials. The 135-degree cross-ground tip provides excellent self-centering capabilities, eliminating the need for pre-punching and ensuring accurate hole placement. The industrial-quality finish and precision grinding result in clean, burr-free holes and extended tool life, even under high-stress conditions.
Suitable for
Drilling into stainless steel grades A2 and A4
Working with alloyed and non-alloyed steel
Processing cast iron and cast steel
Drilling into bronze and various hard plastics
This drill bit is not intended for use on soft materials like wood or soft aluminum where standard HSS bits are more cost-effective. It is also not suitable for masonry, concrete, or stone drilling, as the cobalt alloy is specifically optimized for metal and hard synthetic materials.
Key specifications
Diameter: 7 mm
Material: 5% Cobalt-alloyed HSS steel
Tip angle: 135 degrees
Geometry: Cross-ground to DIN 1412 C
Rotation: Right-hand cut
Shank type: Cylindrical
To achieve the best results, ensure the drill bit is securely fastened in a compatible geared chuck. Apply consistent, moderate pressure and use a suitable cooling lubricant when drilling into stainless steel or hard alloys to prolong the life of the cutting edge. Maintain a lower rotational speed for harder materials to prevent overheating and premature wear.
What to consider before purchase
Verify that your drill chuck supports a 7 mm cylindrical shank
Ensure your drill has variable speed control for optimal performance
Confirm the material hardness is within the recommended range for cobalt bits
For optimal performance and longevity, always use a cutting oil or cooling paste when drilling into stainless steel or cast iron, and avoid excessive force that could cause the bit to snap.

## Specifications

| Feature | Value |
|---|---|
| Product colour | Bronze |
| Length | 225 mm |
| Proper use | Drill |
| Package type | Blister |
| Rotating direction | Right hand rotation |
| Suitable for materials | Iron, Stainless steel sheet (thin), Stainless steel, Plastic |
| Drill bit diameter | 7 mm |
| DIN compliance | 338 |
| Point angle | 135 ° |
| Drill bit material | Cobalt Alloy High-Speed Steel (HSS-Co) |
| Precision ground cutting edges | Yes |
| Number of drill bits | 0 pc(s) |
| Thread size supported | M8 |
| Drill bit type | Twist drill bit |

## FAQ

### How much does the KWB 248670 Cobalt HSS Twist Drill Bit cost, and is it available for purchase?

The price is 20.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 20.08.2026 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. 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 KWB 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 KWB 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/10941304/61292572_large.webp