# Drill bits set Proline 78035K — metal bits, 3.5 mm diameter, 70 mm length, 3 pcs

**URL:** https://aio.lv/en/product--proline-78035k--11719077
**Data updated:** 2026-03-08 11:21 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 78035K
**EAN:** 5903755153890
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 5.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-78035k--11719077

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Proline drill bit set 78035K comprises three metal drill bits with 3.5 mm diameter and 70 mm overall length. Designed for drilling metal and other solid materials, these straight-shank bits suit hand drills and drill drivers. Useful for workshop, maintenance and light fabrication tasks requiring precise 3.5 mm holes.

## Long description

Proline 78035K drill bits set contains three high-speed steel metal bits with 3.5 mm working diameter and 70 mm overall length, intended for drilling accurate holes in metal and other solid materials. The bits have a 135° point angle with chamfering adjustment to facilitate fast centring and reduce walking on start, and are produced by grinding to ensure straightness and dimensional accuracy. Manufactured from premium HSS with 5% cobalt, these bits offer elevated temperature resistance and durability when working with high-alloy steels, titanium, stainless and acid-resistant steels, creep-resisting steels, cast iron and other difficult-to-machine materials.
Advantages
These drill bits combine a 135° split-point geometry with precise grinding to deliver fast penetration, reduced skidding at the start and consistently straight holes. The use of HSS with 5% cobalt increases hardness at elevated temperatures and extends service life when drilling hard and heat-resistant alloys. The straight shank design makes the bits compatible with hand drills, drill drivers and drill chucks used in workshop, maintenance and light fabrication tasks. The blister packaging keeps the set organized and protects the bits during storage and transport.
Suitable for
 Drilling holes in stainless steel and acid-resistant steels
 Working with high-alloy and creep-resisting steels
 Fabrication, maintenance and workshop repair tasks
 Drilling into cast iron and other hard materials
 Use with hand drills, drill drivers and bench drills
Key specifications
 Diameter: 3.5 mm (working diameter)
 Overall length: 70 mm
 Material: high-speed steel (HSS) with 5% cobalt
 Point angle: 135° with chamfering adjustment (split-point geometry)
 Manufacturing: fully ground flutes for high straightness and accuracy
 Shank type: straight shank suitable for standard chucks
 Pack quantity: 3 pieces
How to use
Secure the correct bit in the drill chuck and tighten firmly. Mark the drilling position and, if needed, create a small centre punch dimple to prevent wandering. Start drilling at a low speed to allow the 135° point to engage, then increase speed appropriate to the material while applying steady, moderate pressure. Use cutting fluid or lubricant when drilling stainless steel, high-alloy steels or other heat-sensitive materials to reduce friction and prolong bit life. After use, clean chips from the flutes and store the bits in their blister pack to avoid damage.
Usage recommendations
To maximise tool life and hole quality, use lower speeds and light feeds for hard and heat-resistant materials, maintain proper lubrication, and avoid excessive pressure that may cause overheating or premature wear. Replace bits that show significant wear, chipping or loss of geometry.

## Specifications

| Feature | Value |
|---|---|
| Length | 70 mm |
| Metal drill bits diameter | 3.5 |
| Number of drill bits | 3 pc(s) |

## FAQ

### How much does the Proline 78035K drill bits 3.5 mm, 70 mm, 3 pcs cost, and is it available for purchase?

The price is 6.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 200 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 06.07.2026 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/11719077/67196425_large.webp