# Drill bit Bosch HSS-Co 135 7.5 mm x 69 mm — high-speed cobalt twist drill

**URL:** https://aio.lv/en/product--bosch-b-2608585859--11721326
**Data updated:** 2026-03-08 11:24 (EET)
**Category:** Drill Bits
**Manufacturer:** Bosch
**Manufacturer code:** B 2608585859
**EAN:** 3165140520942
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.99 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 8.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bosch-b-2608585859--11721326

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 21.07.2026 | free |
| Pickup points | 24.07.2026 | 1.89 EUR |
| Courier delivery to door | 24.07.2026 | 4.99 EUR |

## Summary description

Bosch HSS-Co 135 drill bit, 7.5 mm diameter and 69 mm overall length, is a high-speed cobalt (HSS-Co) twist drill designed for drilling in harder metals. Its 135° point angle provides precise centring and reduced walking; cobalt alloy increases heat resistance for longer life. Suitable for metalworking, steel and stainless steel drilling in professional and workshop use.

## Long description

Bosch HSS-Co 135 7.5 mm x 69 mm is a high-speed cobalt twist drill engineered for precise drilling in harder metals. With a 7.5 mm cutting diameter and 69 mm overall length, this drill bit combines a 135° split-point geometry and a cobalt-enriched high-speed steel composition to provide improved centring, reduced walking and higher heat resistance compared with conventional HSS bits. The construction is tailored to professional and workshop applications where reliable hole quality and extended tool life are required when working with steel and stainless steel.
Advantages
The 135° point angle ensures fast penetration and accurate centring, minimising the need for pilot holes. Cobalt alloy in the cutting material increases temperature tolerance and wear resistance, supporting longer life under high-speed and high-load conditions. The twist-drill geometry provides efficient chip evacuation and stable cutting action, resulting in cleaner holes and consistent performance across a range of metalworking tasks.
Suitable for
 Drilling holes in carbon steel and alloy steel
 Drilling stainless steel and heat-resistant metals
 Professional workshop and metal fabrication tasks
 Repair, maintenance and machinery component machining
Key specifications
 Cutting diameter: 7.5 mm
 Overall length: 69 mm
 Material: high-speed steel with cobalt (HSS-Co)
 Point angle: 135° split point for improved centring
 Geometry: twist drill for efficient chip evacuation
 Intended application: drilling in harder metals including stainless steel
How to use
Secure the workpiece and mark the drilling position. Use an appropriate drill chuck or collet compatible with a 7.5 mm shank, and set the drill press or hand drill to a speed suitable for HSS-Co drills and the material being drilled (lower speeds for stainless steel). Apply steady, even pressure and avoid excessive feed that could overload the bit. Periodically withdraw the drill to clear chips and allow cooling; for continuous or deep drilling use cutting fluid or coolant to reduce heat buildup and extend tool life.
Usage recommendations
For best results when drilling stainless steel or heat-resistant alloys, use low cutting speeds, generous lubrication and moderate feed rates. Inspect the drill bit for wear or chipping before use and replace when cutting performance declines to maintain hole quality and prevent workpiece damage.

## FAQ

### How much does the Bosch HSS-Co 135 drill bit 7.5x69 mm cost, and is it available for purchase?

The price is 9.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 12 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 21.07.2026 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. 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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