# Drill bit Bosch HSS Twist Drill Bit Cobalt 7 mm, single piece

**URL:** https://aio.lv/en/product--bosch-2608585858--11721547
**Data updated:** 2026-03-08 11:24 (EET)
**Category:** Drill Bits
**Manufacturer:** Bosch
**Manufacturer code:** 2.608.585.858
**EAN:** 3165140520935
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.49 €
**Prices and availability valid until:** 2026-08-16 23:59
**Price without VAT (21%):** 8.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bosch-2608585858--11721547

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.08.2026 | free |
| Pickup points | 11.08.2026 | 1.79 EUR |
| Courier delivery to door | 11.08.2026 | 4.99 EUR |

## Summary description

Bosch HSS Twist Drill Bit Cobalt is a 7 mm high-speed steel twist drill designed for drilling tasks. Coated with cobalt for improved heat resistance and wear performance, it is supplied as a single piece and intended for use with drills and rotary hammers. Suitable for metalworking and general-purpose drilling where durability is important.

## Long description

Bosch HSS Twist Drill Bit Cobalt 7 mm is a single-piece high-speed steel twist drill designed for drilling metal and other hard materials. The bit features a cobalt-alloy treatment to improve heat resistance and wear performance, a pointed split-point 135° tip for active cutting and precise centring, and two cutters with two flutes for efficient chip removal. Manufactured to DIN 338 with diameter tolerance h8 and a cylindrical shank equal to the drill diameter, this 7 mm twist drill is intended for use in drill stands and drill drivers and is suitable for alloyed and non-alloyed steels, stainless steel, cast iron and cast steel, and other metalworking tasks.
Advantages
The cobalt-alloyed HSS construction provides increased hardness and heat protection compared with standard HSS, extending tool life during continuous or heavy-duty drilling in stainless and alloyed steels. The split-point 135° tip reduces walking and improves centring, enabling accurate starts without pilot drilling in many applications. Two cutters and two flutes accelerate chip evacuation, lowering heat build-up and preserving cutting edges for longer service life. The cylindrical shank fits standard three-jaw chucks, allowing straightforward mounting in drill drivers and bench drills.
Suitable for
 Drilling holes in stainless steel and acid- or heat-resistant steels
 General metalworking and fabrication tasks
 Repair and maintenance of machinery and equipment
 Use in drill stands and handheld drill drivers with three-jaw chucks
Key specifications
 Drill type: HSS twist drill with cobalt alloy
 Tip angle: 135° split-point for reduced wandering
 Diameter: 7 mm
 Total length: 109 mm
 Flutes: two flutes and two cutters for chip removal
 Shank: cylindrical shank equal to drill diameter
 Manufacturing standard: DIN 338, Type N flute geometry
 Material suitability: alloyed and non-alloyed steel, stainless steel, cast iron, cast steel
 Supply: single piece
How to use
Secure the 7 mm cylindrical shank in a compatible three-jaw chuck and ensure the drill is properly tightened. Select an appropriate cutting speed and feed for the material being drilled; for stainless and alloyed steels use lower speeds and steady pressure to avoid overheating. Use a centre punch or pilot hole if extreme precision is required, although the 135° split-point tip often enables accurate starts without pre-drilling. Apply suitable cutting fluid or coolant when machining stainless or heat-resistant steels to extend tool life and improve chip evacuation. Withdraw the bit occasionally to clear chips during deep holes.
Usage recommendations
For prolonged service life when drilling stainless steel and heat-resistant alloys, use reduced cutting speeds, consistent coolant or cutting fluid, and moderate feed. Inspect the cutting edges regularly and replace the bit if chipping or excessive wear is observed. Avoid excessive lateral forces and ensure correct chuck alignment for accurate hole quality.

## Specifications

| Feature | Value |
|---|---|
| Product colour | Bronze |
| Length | 109 mm |
| Proper use | Rotary hammer, Drill |
| Working length | 69 mm |
| Suitable for materials | Cast steel, Steel, Stainless steel, Non-alloyed steel, Metal, Cast iron |
| Drill bit diameter | 7 mm |
| Shank shape | Cylindrical shank |
| DIN compliance | 338 |
| Drill bit material | Cobalt Alloy High-Speed Steel (HSS-Co) |
| Number of drill bits | 1 pc(s) |
| Number of cutting edges | 2 |
| Drill bit type | Twist drill bit |

## FAQ

### How much does the Drill bit Bosch HSS Twist Drill Bit Cobalt 7 mm cost, and is it available for purchase?

The price is 10.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 17 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 06.08.2026 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. 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 Bosch 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 Bosch 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

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