# Drill bit Bosch HSS-CO 135 10.2 mm x 87 mm, cobalt high-speed steel

**URL:** https://aio.lv/en/product--bosch-b-2608585865--11721549
**Data updated:** 2026-03-08 11:24 (EET)
**Category:** Drill Bits
**Manufacturer:** Bosch
**Manufacturer code:** B 2608585865
**EAN:** 3165140521000
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 13.49 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 11.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bosch-b-2608585865--11721549

## 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, diameter 10.2 mm and length 87 mm, made from cobalt-alloyed high-speed steel for increased heat resistance and wear durability. Designed for drilling in hard metals and demanding industrial applications, it features a 135° split point geometry for precise centring and reduced walking. Suitable for use in hand and machine drilling where long-lasting cutting performance is required.

## Long description

Bosch HSS-CO 135 10.2 mm x 87 mm is a cobalt-alloyed high-speed steel drill bit designed for stable, precise drilling in hard metals and demanding industrial applications. The 10.2 mm diameter and 87 mm overall length deliver a balance between reach and rigidity, while the cobalt content increases heat resistance and wear durability. The 135° split point geometry helps achieve accurate centring and reduces tendency to wander, making the bit suitable for both hand-held and machine drilling where consistent cutting performance is required.
Advantages
The cobalt-alloyed high-speed steel construction provides improved resistance to heat and wear compared with standard HSS, extending service life when drilling tough materials. The 135° split point reduces walking at the drill start, enabling more accurate hole positioning without a pilot hole in many cases. The combination of diameter and overall length offers good stiffness for straight holes while allowing sufficient penetration depth for common metalworking tasks.
Suitable for
 Drilling in stainless steel and hardened steels
 Metal fabrication and machine shop operations
 Maintenance and repair work on industrial equipment
 Hand drilling and drill press applications
Key specifications
 Material: cobalt-alloyed high-speed steel (HSS-Co)
 Tip geometry: 135° split point for improved centring
 Diameter: 10.2 mm
 Overall length: 87 mm
 Cutting application: designed for hard metals and demanding use
How to use
Select appropriate speed and feed rates for the material being drilled and secure the workpiece to prevent movement. Use a centre punch for precise positioning if needed, then clamp the drill bit firmly in the chuck. Begin drilling at low speed to establish the hole, then increase speed as recommended for the workpiece material while applying steady, moderate pressure. Use cutting fluid or coolant when drilling stainless or hard steels to reduce heat and prolong tool life. Clear chips regularly to avoid clogging and overheating.
Usage recommendations
For best results when drilling stainless and hardened steels, use appropriate cutting fluid and moderate speeds; avoid excessive feed that can cause bit breakage. Ensure the drill is held perpendicular to the workpiece for straight holes and replace the bit once wear or chipping reduces cutting efficiency.

## FAQ

### How much does the Drill bit Bosch HSS-CO 135 10.2x87 mm cost, and is it available for purchase?

The price is 13.49 € (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 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

https://aio.lv/img/cache/product/11721549/67102741_large.webp