# Drill bit Proline 77642 — metal, Ø 4.2 mm, length 220 mm, 1 pc

**URL:** https://aio.lv/en/product--proline-77642--11719756
**Data updated:** 2026-03-08 11:22 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 77642
**EAN:** 5903755154651
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 6.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-77642--11719756

## 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

Single Proline 77642 metal drill bit with 4.2 mm diameter and 220 mm overall length. Designed for drilling metal and similar materials, this straight shank bit suits handheld drills and drill presses. Use for through-holes, panel work and metal fabrication tasks where a long, precise 4.2 mm hole is required. Supplied as one piece.

## Long description

Single Proline 77642 metal drill bit with a 4.2 mm cutting diameter and a total length of 220 mm. Made from high-quality refined HSS, this extra-long straight-shank drill is fully ground to ensure accurate, straight holes and is suitable for handheld drills and drill presses. The 135° point angle with chamfering adjustment allows faster penetration and reduces the need for extensive marking out, making the bit suitable for through-holes, panel work and metal fabrication where a long, precise 4.2 mm hole is required. Supplied as one piece and intended for use in steel, non-ferrous metals and plastics.
Advantages
The drill's fully ground geometry provides high accuracy and rectilinearity, which improves hole quality and repeatability. A 135° point angle with chamfering adjustment facilitates quick drilling and reduces burr formation. The extra length (220 mm) allows drilling through thicker assemblies and reaches confined or recessed areas without the need for extensions. Manufactured from refined high-speed steel (HSS), the bit offers durability and consistent cutting performance in metal and related materials.
Suitable for
Drilling through-holes in thin and medium-thickness steel sheets
Panel work and metal fabrication where long reach is required
Drilling in non-ferrous metals and plastics
Use with handheld drills and drill presses for precise 4.2 mm holes
Key specifications
Cutting diameter: 4.2 mm
Total length: 220 mm
Shank type: straight shank for standard chucks
Material: refined high-speed steel (HSS)
Point geometry: 135° point angle with chamfering adjustment
Finish: fully ground flutes for accuracy and rectilinearity
Intended materials: steel, non-ferrous metals, plastics
Quantity: 1 piece
How to use
Select a suitable drill holder or chuck that securely grips the straight shank, then clamp the workpiece to prevent movement. Mark the drilling location and, if necessary, use a center punch or drill bush for exact positioning. Begin drilling at low speed to establish the hole, then increase speed appropriate to the material while applying steady pressure and adequate coolant or cutting fluid for metal work. Maintain alignment to preserve hole straightness; withdraw occasionally to clear chips on deep holes. After drilling, deburr the hole if required.
Usage recommendations
For best results in steel and other metals, use cutting fluid to reduce heat and extend tool life. Match drill speed to the material hardness—lower speeds for harder steels, medium speeds for non-ferrous metals and higher speeds for plastics. When drilling long holes, periodically withdraw the drill to evacuate chips and avoid clogging the flutes.

## Specifications

| Feature | Value |
|---|---|
| Length | 220 mm |
| Metal drill bits diameter | 4.2 |
| Number of drill bits | 1 pc(s) |

## FAQ

### How much does the Drill bit Proline 77642 Ø4.2 mm, 220 mm cost, and is it available for purchase?

The price is 7.99 € (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/11719756/67194867_large.webp