# Twist drill bit KWB 421600 13 pc(s)

**URL:** https://aio.lv/en/product--kwb-421600--1984963
**Data updated:** 2026-01-06 11:08 (EET)
**Category:** Drill Bits
**Manufacturer:** KWB
**Manufacturer code:** 421600
**EAN:** 4009314216004
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 34.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 28.92 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kwb-421600--1984963

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.07.2026 | free |
| Pickup points | 27.07.2026 | 1.99 EUR |
| Courier delivery to door | 27.07.2026 | 4.99 EUR |

## Summary description

The KWB 421600 twist drill bit set includes 13 pieces designed for precision drilling. These right-hand rotation bits are ideal for various materials, ensuring clean and accurate holes. Packaged in a convenient hanging box, this set is perfect for both professionals and DIY enthusiasts looking for reliable and durable drill bits.

## Long description

The KWB 421600 twist drill bit set contains 13 precision ground, right-hand rotation drill bits made from a 5% cobalt alloy. Finished in a bronze colour and supplied in a hanging box, the set covers sizes from 1.5 to 6.5 mm plus 3.3 mm and 4.2 mm. Each bit has a 135° tip angle with cross-ground geometry to DIN 1412 C and a cylindrical shank; they are self-centering and manufactured to industrial quality standards for demanding drilling tasks.
Advantages
These KWB cobalt twist drills combine wear resistance and heat resistance for improved performance when working with hard materials. The 135° tip and cross-ground cutting edges provide accurate centring and clean hole finish, while the precision ground flutes and alloy composition help maintain cutting geometry under high temperatures.
Suitable for
Drilling in steel and alloyed steel
Stainless steel grades A2 and A4
Cast iron and cast steel
Bronze and non-ferrous metals
Plastics
Key specifications
Manufacturer: KWB
MPN: 421600
EAN: 4009314216004
Set size: 13 pieces
Sizes included: 1.5–6.5 mm plus 3.3 mm and 4.2 mm
Material: High-speed steel alloyed with 5% cobalt
Tip angle: 135°
Cut type: Right-hand, type N, cross-ground to DIN 1412 C
Shank: Cylindrical
Finish: Bronze colour
How to use
Mark and centre the drilling position, clamp the workpiece securely and select the appropriate drill size from the set. Use suitable cutting speed and coolant or cutting fluid when drilling hard or stainless steels. Apply steady feed pressure without forcing; withdraw occasionally to clear chips. Ensure the drill is held concentrically in the chuck to maintain accuracy.
Usage recommendations
For best results on stainless and alloyed steels, use reduced cutting speeds, appropriate coolant, and progressive peck drilling where necessary to avoid overheating and extend tool life.

## Specifications

| Feature | Value |
|---|---|
| Product colour | Bronze |
| Proper use | Drill |
| Package type | Hanging box |
| Rotating direction | Right hand rotation |
| Suitable for materials | Iron, Plastic, Profile, Sheet metal, Stainless steel |
| DIN compliance | 338 |
| Point angle | 135 ° |
| Drill bit material | Cobalt Alloy High-Speed Steel (HSS-Co) |
| Metal drill bits diameter | 1.5 - 6.5, 3.3, 4.2 |
| Number of drill bits | 13 pc(s) |
| Drill bit type | Twist drill bit |

## FAQ

### How much does the Twist drill bit KWB 421600 cost, and is it available for purchase?

The price is 34.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 21 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 22.07.2026 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. 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 KWB 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 KWB 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/1984963/58149297_large.webp