# Drill bit NEO tools HSS-Co for metal, 4.0 mm (57-024)

**URL:** https://aio.lv/en/product--neo-tools-57-024--12365523
**Data updated:** 2026-04-26 18:54 (EEST)
**Category:** Drill Bits
**Manufacturer:** NEO tools
**Manufacturer code:** 57-024
**EAN:** 5906692008544
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 3.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--neo-tools-57-024--12365523

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

NEO tools HSS-Co 4.0 mm metal drill bit (model 57-024) is a high-speed steel cobalt alloy cutting tool designed for drilling holes in metal. The HSS-Co composition improves wear resistance and heat tolerance for machining steel and other ferrous materials. Suitable for hand drills and drill presses in workshop, construction and repair tasks.

## Long description

NEO tools HSS-Co 4.0 mm metal drill bit is a precision cutting tool made from high-speed steel with cobalt alloy designed specifically for drilling holes in steel and other ferrous materials. Its HSS-Co composition increases hardness at elevated temperatures, improving wear resistance during through-drilling and repeated operations. The bit is intended for use with hand-held drills and drill presses in workshops, construction sites and repair tasks that require reliable metal-cutting performance.
Advantages
The cobalt-enriched high-speed steel composition enhances heat tolerance and prolongs tool life compared to standard HSS bits, reducing the risk of edge softening when cutting harder metals. Its ground geometry provides stable centring and efficient chip evacuation, which helps maintain drilling accuracy and reduces the likelihood of workpiece damage. Compact diameter makes it suitable for precise hole-making and for tasks that require consistent hole size.
Suitable for
Drilling holes in mild and alloy steels
Workshop maintenance and mechanical repairs
Installation tasks on construction sites where metal penetration is required
Use with hand drills and benchtop or floor drill presses
When it may not be suitable
This drill bit is not intended for masonry, wood, glass or ceramic materials; using it on such materials will cause poor cutting performance and possible damage to the bit. For very soft non-ferrous metals, a carbide or standard HSS bit with different geometry may be more efficient. Extremely high-speed applications without appropriate cooling may still shorten tool life despite the cobalt enhancement.
Key specifications
Material: high-speed steel with cobalt alloy (HSS-Co)
Diameter: 4.0 mm
Intended material: steel and other ferrous metals
Shank style: straight round shank (suitable for standard chucks)
Cutting geometry: ground tip for centring and chip evacuation
How to use
Secure the drill bit firmly in the drill chuck and set the drill to an appropriate rotational speed for metal drilling—moderate speeds for harder steels and higher speeds for softer ferrous materials. Mark the drilling position and, when necessary, use a centre punch to prevent walking. Apply steady, even feed pressure and use cutting fluid or coolant to reduce heat and extend tool life. Withdraw the bit periodically to clear chips and prevent clogging.
What to consider before purchase
Confirm that a 4.0 mm diameter meets your hole-size requirements.
Ensure your drill chuck accepts a straight round shank and secures the diameter safely.
Verify that intended materials are ferrous metals; select a different bit type for masonry, wood, or glass.
Plan for proper cooling or cutting fluid when drilling thicker or harder steel to maintain performance.
Usage recommendations
Use cutting fluid for prolonged operations, start drilling with a pilot mark or centre punch, and match drill speed to material hardness to achieve consistent hole quality and longer tool life.

## FAQ

### How much does the NEO tools HSS-Co metal drill bit 4.0 mm 57-024 cost, and is it available for purchase?

The price is 4.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 100 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 03.07.2026 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 NEO tools 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 NEO tools 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/12365523/68353337_large.webp