---
product_id: 421273371
title: "ALLEX Insulation Knife with Sheath Japanese Stainless Steel 8 Inch Long Cut, Insulation and Styrofoam Cutter with Blade Case, Serrated Sharp Duct Knife Tool, Made in Japan"
brand: "allex"
price: "316.85 DT"
currency: TND
in_stock: true
reviews_count: 5
url: https://www.desertcart.tn/products/421273371-allex-insulation-knife-with-sheath-japanese-stainless-steel-8-inch
store_origin: TN
region: Tunisia
---

# 8" serrated blade safety blade cover Japanese steel ALLEX Insulation Knife with Sheath Japanese Stainless Steel 8 Inch Long Cut, Insulation and Styrofoam Cutter with Blade Case, Serrated Sharp Duct Knife Tool, Made in Japan

**Brand:** allex
**Price:** 316.85 DT
**Availability:** ✅ In Stock

## Summary

> Cutting through the competition! ✂️

## Quick Answers

- **What is this?** ALLEX Insulation Knife with Sheath Japanese Stainless Steel 8 Inch Long Cut, Insulation and Styrofoam Cutter with Blade Case, Serrated Sharp Duct Knife Tool, Made in Japan by allex
- **How much does it cost?** 316.85 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/421273371-allex-insulation-knife-with-sheath-japanese-stainless-steel-8-inch)

## Best For

- allex enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Includes a protective sheath for safe storage and transport.
- • **Efficient Cutting:** Serrated edge designed for smooth cuts through tough insulation materials.
- • **Versatile Utility:** Perfect for both DIY enthusiasts and professionals alike.
- • **Lightweight Design:** Weighs only 4 oz for effortless handling.
- • **Cutting Edge Performance:** Experience razor-sharp precision with Japanese stainless steel.

## Overview

The ALLEX Insulation Knife is an 8-inch long cutting tool made from high-grade Japanese stainless steel, designed for effortless cutting of various insulation materials. Weighing only 4 oz, it features a lightweight resin handle and comes with a safety blade cover for secure storage. Ideal for both home DIY projects and professional use, this knife ensures efficiency and precision in every cut.

## Description

Japanese razor sharp insulation Knife for cutting Insulation. Made in JAPAN.

Review: Works really well for cutting fiberglass insulation
Review: やはり専用品 カッターとは違う

## Features

- Utility Insulation Cutting Tool: It is an easy-to-use Japanese insulation cutter. This versatile knife is ideal for cutting various insulator materials, styrofoam, polyurethane foam, foam, glass wool, mineral wool, Rockwool, fiberglass insulation, etc. Both home DIY users and professional users can use this versatile knife. As it is a resin handle, it is very lightweight.
- Razor Sharp Japanese Steel: The blade uses Japanese high-grade stainless steel. The excellent sharpness of the Japanese steel knife minimizes chips and provides a smooth cutting feel. Improves work efficiency even when cutting materials that are difficult to cut with a regular cutter.
- Long and Serrated Blade: The 8 inch long blade can cut even large-sized insulation materials. It has a unique wave blade edge (serrated blade) processing specialized for cutting heat-insulating materials and styrofoam.
- Safety Blade Cover: It comes with a blade cover that is convenient for safe carrying. You can also store it safely at home or in your workplace.
- Overall Length: 13" / Blade Length: 8" / / Blade thickness: 1.5 mm / Weight 4 oz / Made in JAPAN

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08ZMR58B9 |
| Best Sellers Rank | #200,538 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #539 in Utility Knives |
| Blade Color | Silver |
| Blade Edge | Serrated |
| Blade Material Type | Stainless Steel,Steel |
| BladeLength | 8 Inches |
| Brand Name | ALLEX |
| Construction Type | Forged |
| Customer Reviews | 4.4 4.4 out of 5 stars (219) |
| Handle Material | Fiberglass,Resin Handle,Stainless Steel,Steel |
| Included Components | Sheath |
| Is the item dishwasher safe? | No |
| Item Length | 13 Inches |
| Manufacturer | ALLEX |
| Manufacturer Part Number | 34103 |
| Material Type | Stainless Steel |
| Model Number | 34103 |
| Unit Count | 1 Count |

## Product Details

- **Blade edge:** Serrated
- **Blade length:** 8 Inches
- **Blade material:** Stainless Steel,Steel
- **Brand:** ALLEX
- **Handle material:** Fiberglass,Resin Handle,Stainless Steel,Steel

## Images

![ALLEX Insulation Knife with Sheath Japanese Stainless Steel 8 Inch Long Cut, Insulation and Styrofoam Cutter with Blade Case, Serrated Sharp Duct Knife Tool, Made in Japan - Image 1](https://m.media-amazon.com/images/I/51tvi5FC6BL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by H***1 on 6 January 2026*

Works really well for cutting fiberglass insulation

### ⭐⭐⭐⭐ Review
*by 剪***ミ on 6 May 2025*

やはり専用品 カッターとは違う

### ⭐⭐⭐⭐⭐ Review
*by A***R on 31 July 2025*

Excellent knife, I've used it for an array of installation material, mostly for free handing around pipes or corners. It's extremely sharp so it's best to hold onto the sheeth. I've mostly used it on Fire protected batt and cuts happily all day. Would absolutely buy another, without a doubt.

## Frequently Bought Together

- ALLEX Insulation Knife with Sheath 8" Long Cut, Japanese Stainless Steel, Insulation & Styrofoam Cutter with Blade Case, Serrated Sharp Duct Knife Tool, Made in JAPAN
- Hyde Tools 60780 Square Point Knife, 8-Inch by 1-Inch/14-Gauge Wood Handle
- Norton Utility File with Handle, Silicon Carbide, 14" Overall Length, Grit Coarse

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**Shop now:** [https://www.desertcart.tn/products/421273371-allex-insulation-knife-with-sheath-japanese-stainless-steel-8-inch](https://www.desertcart.tn/products/421273371-allex-insulation-knife-with-sheath-japanese-stainless-steel-8-inch)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-28*