# Drill bit Proline 7.3 mm NWKk DIN 1897 RN HSS, ground 74-34

**URL:** https://aio.lv/en/product--proline-00907301--11720341
**Data updated:** 2026-03-08 11:23 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 00907301
**EAN:** 5900006134523
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 4.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-00907301--11720341

## 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

Proline drill bit, 7.3 mm diameter, NWKk type manufactured to DIN 1897 specification with RN point and HSS (high-speed steel) material. Ground finish (marked 74-34) for precise cutting and improved surface quality. Suitable for drilling metal and general workshop tasks where a DIN 1897 HSS twist drill is required.

## Long description

Proline 7.3 mm NWKk DIN 1897 RN HSS twist drill is a high-speed steel drill bit designed to meet DIN 1897 standards. The RN (reduced nose) point geometry and ground finish (designation 74-34) provide accurate centering and improved surface quality on drilled holes. Intended for general workshop and metalworking tasks, this drill bit suits operations where a standardized DIN 1897 HSS tool is required.
Advantages
The HSS material ensures good wear resistance and hot hardness for sustained cutting performance in metal. Ground flutes and the 74-34 finish deliver precise cutting edges and smoother hole walls, while the RN point reduces walking at contact and improves initial hole positioning. The NWKk shank and twist-drill geometry provide predictable chip removal and stable drilling in a range of ferrous and non-ferrous materials.
Suitable for
 Drilling holes in mild steel, alloy steel and cast iron
 General workshop and maintenance drilling tasks
 Bench or machine drilling where DIN 1897 twist drills are specified
 Drilling operations requiring precise centre-running and good surface finish
Key specifications
 Diameter: 7.3 mm
 Material: High-speed steel (HSS)
 Point type: RN (reduced nose) for improved centring
 Standard: DIN 1897 twist drill geometry
 Finish: Ground cutting edges and flutes (74-34)
 Shank type: NWKk twist-drill shank
How to use
Mark the drilling position and secure the workpiece to prevent movement. Select appropriate spindle speed and cutting fluid for the work material—lower speeds and coolant for harder steels, higher speeds for softer materials. Align the drill perpendicular to the surface and apply steady, moderate feed pressure to allow chip clearance. Retract periodically on deep holes to remove chips and reduce heat build-up. Inspect the hole and tool periodically for wear or damage.
Usage recommendations
Use cutting fluid when drilling steel to extend tool life and improve surface finish. Replace the drill if flank wear or chipping affects hole quality. For repetitive or production work, monitor speeds and feeds to balance tool life and machining time.

## FAQ

### How much does the Drill bit Proline 7.3 mm NWKk DIN 1897 cost, and is it available for purchase?

The price is 5.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 Proline 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 Proline 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/11720341/67101602_large.webp