---
product_id: 9801291
title: "18mm Heavy-Duty Ex tra-Sharp Black Snap-Off Blades, 50-Blade/Pack, 1 Pack (BL-51P), 58 degree"
brand: "nt cutter"
price: "Rp685375"
currency: IDR
in_stock: true
reviews_count: 13
category: "Nt Cutter"
url: https://www.desertcart.id/products/9801291-18mm-heavy-duty-ex-tra-sharp-black-snap-off-blades
store_origin: ID
region: Indonesia
---

# extra-sharp 58° black blade edge 50 blades per pack, long-lasting supply 18mm heavy-duty carbon steel 18mm Heavy-Duty Ex tra-Sharp Black Snap-Off Blades, 50-Blade/Pack, 1 Pack (BL-51P), 58 degree

**Brand:** nt cutter
**Price:** Rp685375
**Availability:** ✅ In Stock

## Summary

> 🖤 Cut sharper, last longer — the pro’s secret weapon!

## Quick Answers

- **What is this?** 18mm Heavy-Duty Ex tra-Sharp Black Snap-Off Blades, 50-Blade/Pack, 1 Pack (BL-51P), 58 degree by nt cutter
- **How much does it cost?** Rp685375 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/9801291-18mm-heavy-duty-ex-tra-sharp-black-snap-off-blades)

## Best For

- nt cutter enthusiasts

## Why This Product

- Trusted nt cutter brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleek Black Finish:** Distinctive black blades that combine style with superior durability.
- • **Heavy-Duty 18mm Width:** Robust thickness designed to tackle tough materials with ease.
- • **Versatile Cutting Power:** Perfect for cardboard, leather, linoleum, carpet, and more.
- • **Bulk 50-Pack Convenience:** Stay stocked and ready for any project or professional task.
- • **Precision-Crafted Carbon Steel:** Engineered in Japan for unmatched sharpness and edge retention.

## Overview

NT Cutter’s 18mm Heavy-Duty Extra-Sharp Black Snap-Off Blades deliver professional-grade precision with high-quality carbon tool steel and a finely honed 58-degree edge. Made in Japan, this 50-blade pack offers exceptional durability and versatility for demanding industrial, DIY, and creative projects.

## Description

NT professional black snap-off blades with extra sharpness for heavy-duty utility knives. 50 specialty blades are packed in a protective plastic container with a convenient hanging hole. These professional blades are made of high quality carbon tool steel and produced through multiple stages of precise process to obtain the ultimate sharpness and optimum edge-retention. With even more vigorous steps taken during the finishing process, the cutting edge of these black blades have even finer sharpness. Recommended for professional use only due to its fine delicate edge. 50 carbon steel blades per pack. Good for DIY projects, construction such as drywall, roofing, flooring, Industrial application, warehouses, factories, etc. Made in Japan.

Review: Awesome utility knife blades - Awesome utility knife blade. It's quite sharp, durable, and rust-free, and it's more affordable than Olfa.
Review: Great blades for a *great* cutter - NT Cutters (especially my favorite the L-2000RP heavy duty box cutter) are an (IMHO) underappreciated Japanese line of razor cutters, for which these are replacement blades. But you know that, otherwise why would you be looking here! Anyway these are more blades. It takes forever to go through them... this pack will probably last you a lifetime, unless you spend all day every day razor cutting (and maybe you do!).

## Features

- Heavy duty snap-off blades
- 18mm W x 100mm L x 0.50mm T
- Black
- 58 degree
- Made of high quality carbon tool steel
- Cutting material: Cardboard, rubber, leather, corkboard, acetates, linoleum, carpet, thin veneer,form board, etc.
- 50ea per pack
- Made in Japan

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007TFC2BO |
| Best Sellers Rank | #52,749 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #106 in Art Blades |
| Blade Material | high quality carbon tool steel |
| Brand | NT Cutter |
| Brand Name | NT Cutter |
| Color | Black |
| Customer Reviews | 4.6 out of 5 stars 196 Reviews |
| Global Trade Identification Number | 04904011016417 |
| Handle Material | Plastic |
| Item Length | 10 centimeters |
| Item Type Name | Heavy-duty 18mm replacement thick black blade |
| Item Weight | 11.52 ounces |
| Manufacturer | NT Incorporated |
| Manufacturer Part Number | BL-51P |
| Material | high quality carbon tool steel |
| Material Type | high quality carbon tool steel |
| Model Number | BL-51P |
| Number of Packs | 1 |
| Product Style | Black 50-pack |
| Unit Count | 50 Count |

## Product Details

- **Blade Material:** high quality carbon tool steel
- **Brand:** NT Cutter
- **Color:** Black
- **Handle Material:** Plastic
- **Item Length:** 10 centimeters
- **Item Weight:** 11.52 ounces
- **Material:** high quality carbon tool steel
- **Number of Packs:** 1
- **Style:** Black 50-pack
- **Unit Count:** 50 Count

## Images

![18mm Heavy-Duty Ex tra-Sharp Black Snap-Off Blades, 50-Blade/Pack, 1 Pack (BL-51P), 58 degree - Image 1](https://m.media-amazon.com/images/I/51Lgr5qhV8L.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Awesome utility knife blades
*by N***O on July 19, 2026*

Awesome utility knife blade. It's quite sharp, durable, and rust-free, and it's more affordable than Olfa.

### ⭐⭐⭐⭐⭐ Great blades for a *great* cutter
*by D***R on March 23, 2021*

NT Cutters (especially my favorite the L-2000RP heavy duty box cutter) are an (IMHO) underappreciated Japanese line of razor cutters, for which these are replacement blades. But you know that, otherwise why would you be looking here! Anyway these are more blades. It takes forever to go through them... this pack will probably last you a lifetime, unless you spend all day every day razor cutting (and maybe you do!).

### ⭐⭐⭐⭐⭐ High quality, great price
*by C***. on June 5, 2021*

Wow, these are sharp, Especially reallllly sharp for a bigger blade. Price is awesome for the number of blades you get.

## Frequently Bought Together

- NT Cutter 18mm Heavy-Duty Ex tra-Sharp Black Snap-Off Blades, 50-Blade/Pack, 1 Pack (BL-51P), 58 degree
- NT Cutter 9mm Ex tra-Sharp Black Snap-Off Blades, 50-Blade/Pack, 1 Pack (BA-51P)
- NT Cutter Heavy Duty Aluminum Die-Cast Grip Multi-Blade Cartridge Knife, 1 Knife (L-2000RP), Red.

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**Shop now:** [https://www.desertcart.id/products/9801291-18mm-heavy-duty-ex-tra-sharp-black-snap-off-blades](https://www.desertcart.id/products/9801291-18mm-heavy-duty-ex-tra-sharp-black-snap-off-blades)

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*Product available on Desertcart Indonesia*
*Store origin: ID*
*Last updated: 2026-09-21*