# Utility knife blade Proline 31304 — replacement blade, 1 pc

**URL:** https://aio.lv/en/product--proline-31304--11736440
**Data updated:** 2026-03-08 13:38 (EET)
**Category:** Universal knives
**Manufacturer:** Proline
**Manufacturer code:** 31304
**EAN:** 5903755313041
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 3.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-31304--11736440

## 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 31304 is a single replacement blade for utility/box cutters supplied as 1 piece per pack. Designed for cutting tasks in packaging, crafting and light construction, this spare blade fits compatible utility knives and provides a ready replacement to restore cutting performance.

## Long description

Proline 31304 replacement blade is a single utility knife blade intended as a spare part to restore cutting performance of compatible utility and box cutters. Supplied as one blade per pack, it is manufactured for general cutting tasks encountered in packaging, crafting and light construction. The blade's geometry and hardened edge are optimized for straight cuts through cardboard, plastic strapping, tape and similar materials where a sharp, reliable edge is required.
Advantages
The Proline replacement blade offers a precise, consistent cutting edge that reduces tearing and incomplete cuts. Its hardened steel construction maintains sharpness for repeated use and can be replaced quickly in knives designed for snap-off or removable blades. Supplied individually, this blade provides an economical way to refresh a worn cutter without replacing the entire tool, ensuring continued efficiency and safety during routine cutting tasks.
Suitable for
 Opening and cutting cardboard boxes and packaging
 Trimming plastic sheeting, tape and foil
 Craft and hobby cutting where a straight, sharp edge is needed
 Light construction tasks such as cutting drywall tape or insulation foil
 Replacing worn blades in compatible utility knives
Key specifications
 Quantity: 1 replacement blade per pack
 Blade type: straight utility/box cutter blade
 Material: hardened steel edge for improved durability
 Intended use: general-purpose cutting of cardboard, tape, plastic and similar materials
 Compatibility: fits utility knives designed for removable single blades
How to use
Turn off or retract the blade on your utility knife and, following the knife manufacturer's instructions, remove the old blade. Handle the replacement blade by its non-cutting areas and insert it into the knife's blade slot until it seats securely. Ensure the blade is locked in place before extending it for cutting. Replace the blade by retracting it fully and repeating the removal procedure when the edge becomes dull. Dispose of used blades in a designated sharps container or according to local waste regulations.
Usage recommendations
Use the blade for appropriate materials and avoid prying or twisting motions that can damage the edge. Wear cut-resistant gloves and eye protection where applicable, and store spare blades in their packaging or a secure dispenser to prevent accidental contact.

## Specifications

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the Proline utility knife blade 31304 cost, and is it available for purchase?

The price is 4.49 € (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/11736440/67165446_large.webp