# Drill bits DeWalt HSS E Cobalt 9.0 mm, set of 10

**URL:** https://aio.lv/en/product--dewalt-bd-dt4940--11178498
**Data updated:** 2026-03-07 18:17 (EET)
**Category:** Drill Bits
**Manufacturer:** DeWalt
**Manufacturer code:** BD-DT4940
**EAN:** 5035048534915
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 75.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 62.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dewalt-bd-dt4940--11178498

## 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

DeWalt HSS E Cobalt drill bit set, 9.0 mm diameter, includes 10 pieces for bulk use. High-speed steel with cobalt alloy for improved heat resistance and wear performance. Intended for drilling into hard metals and industrial materials where durable, long-life bits are required. Suited for workshop, maintenance and professional metalworking tasks.

## Long description

DeWalt HSS E Cobalt 9.0 mm drill bits, supplied as a set of 10, are engineered for drilling hard metals and demanding industrial materials. Manufactured from high-speed steel with a cobalt alloy, these 9.0 mm bits offer improved heat resistance and extended cutting life compared with standard HSS bits. The set format provides multiple identical drills for repetitive workshop, maintenance, or professional metalworking tasks.
Advantages
The cobalt-enhanced high-speed steel composition increases hardness at elevated temperatures, reducing premature wear during prolonged cutting operations. The uniform 9.0 mm diameter across ten pieces ensures consistent hole size and predictable performance when machining steel, stainless steel and other hard alloys. The set configuration reduces downtime for tool changes and supports bulk operations where spare bits are needed.
Suitable for
 Drilling steel and stainless steel
 Workshop and maintenance drilling tasks
 Professional metalworking and fabrication
 Batch or repetitive drilling where multiple identical bits are required
Key specifications
 Material: high-speed steel with cobalt alloy
 Diameter: 9.0 mm
 Quantity in set: 10 pieces
 Intended use: drilling hard metals and industrial materials
 Shank type: standard straight shank suitable for drill chucks
How to use
Select an appropriate drilling speed and use cutting fluid when drilling stainless steel or other heat-sensitive alloys to maximize bit life. Secure the workpiece and align the drill perpendicular to the surface to ensure accurate holes. Start with a pilot hole if drilling very thick or hardened material, then progress at steady pressure without forcing the bit. Replace worn bits from the set to maintain hole quality and prevent damage to the workpiece.
Usage recommendations
For best results, operate drills at recommended speeds for HSS cobalt bits, use coolant or cutting oil when machining stainless steels, and avoid excessive side loading. Store the set in a dry place and rotate bits from the kit to keep backups available during extended jobs.

## FAQ

### How much does the DeWalt HSS E Cobalt drill bits 9.0 mm, set of 10 cost, and is it available for purchase?

The price is 75.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 98 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 DeWalt HSS E Cobalt drill bits 9.0 mm, set of 10 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 DeWalt 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 DeWalt 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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