# Drill bit Proline 10 mm Ø, length 133 mm, model 78100K, single piece

**URL:** https://aio.lv/en/product--proline-78100k--11718259
**Data updated:** 2026-03-08 11:19 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 78100K
**EAN:** 5903755154118
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 9.08 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-78100k--11718259

## 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

Proline drill bit model 78100K — a single metal drill bit with a 10 mm diameter and 133 mm overall length. Designed for drilling metal and suitable for use with handheld drills and drill presses. Useful for general metalworking, maintenance and repair tasks where a standard 10 mm hole is required.

## Long description

Proline drill bit 10 mm Ø, length 133 mm is a single high-speed steel (HSS) metal drill designed for reliable drilling in a wide range of hard-to-machine materials. With a 10 mm cutting diameter and an overall length of 133 mm, this drill is suitable for handheld drills and drill presses and is intended for general metalworking, maintenance and repair tasks that require a standard 10 mm hole.
Advantages
The drill features a 135° point angle with chamfering adjustment to enable fast penetration and reduce time spent on marking out. Manufactured from high-class HSS with 5% cobalt, the bit offers elevated temperature resistance and improved edge life when working in high-alloy, stainless, acid-resistant, titanium and creep-resisting steels, as well as cast iron. Manufactured entirely by grinding, each drill guarantees high dimensional accuracy and straightness of the hole.
Suitable for
Drilling holes in high-alloy and stainless steels
Work with titanium and acid-resistant materials
Maintenance and repair tasks using handheld drills and drill presses
General metal fabrication where a 10 mm hole is required
Key specifications
Cutting diameter: 10 mm
Overall length: 133 mm
Point angle: 135° with chamfering adjustment
Material: high-speed steel (HSS) with 5% cobalt
Manufacture: fully ground flutes for high accuracy and straightness
Temperature resistance: enhanced for high-temperature cutting
Suitable materials: high-alloy steels, stainless steels, acid-resistant steels, titanium, cast iron and other difficult-to-machine materials
Packed in a blister pack designed for single-piece sizes in standard retail packaging
How to use
Secure the workpiece and select appropriate cutting speed and feed for the material being drilled. Use suitable coolant or cutting fluid when working with stainless, high-alloy or titanium materials to reduce heat and prolong tool life. Mount the drill bit firmly in the chuck of a handheld drill or drill press, align the tip with the marked position and start drilling with steady pressure; avoid excessive lateral force to maintain hole straightness. After drilling, back out the bit periodically to clear chips if drilling deep holes.
Usage recommendations
For best results, use cutting fluid and moderate speeds when drilling high-alloy or stainless materials; apply light pecking cycles for deep holes to prevent chip packing and overheating. Inspect the bit regularly for wear and replace when accuracy or cutting performance declines.

## Specifications

| Feature | Value |
|---|---|
| Length | 133 mm |
| Metal drill bits diameter | 10 |
| Number of drill bits | 1 pc(s) |

## FAQ

### How much does the Proline drill bit 10 mm 78100K cost, and is it available for purchase?

The price is 10.99 € (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 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. 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/11718259/67198156_large.webp