---
product_id: 563505303
title: "Klein Tools 31733 Insulation Knife, Cuts Foam and Fiberglass with Serrated Stainless Steel Folding Blade and Lockback Mechanism"
brand: "klein tools"
price: "408 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/563505303-klein-tools-31733-insulation-knife-cuts-foam-and-fiberglass-serrated
store_origin: DK
region: Denmark
---

# Secure lockback mechanism 3CR13 serrated stainless steel blade Folded blade protects tool pouches Klein Tools 31733 Insulation Knife, Cuts Foam and Fiberglass with Serrated Stainless Steel Folding Blade and Lockback Mechanism

**Brand:** klein tools
**Price:** 408 kr
**Availability:** ✅ In Stock

## Summary

> 🔧 Cut with confidence, fold with ease — the pro’s choice for insulation mastery!

## Quick Answers

- **What is this?** Klein Tools 31733 Insulation Knife, Cuts Foam and Fiberglass with Serrated Stainless Steel Folding Blade and Lockback Mechanism by klein tools
- **How much does it cost?** 408 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/563505303-klein-tools-31733-insulation-knife-cuts-foam-and-fiberglass-serrated)

## Best For

- klein tools enthusiasts

## Why This Product

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

## Key Features

- • **Tether Ready:** Integrated lanyard hole keeps your knife secure and within reach on any job site.
- • **Lockback Safety:** Blade locks firmly in place for stable, heavy-duty cutting without slip risks.
- • **Compact & Protective:** Folds neatly to shield your tools and pockets from accidental cuts and damage.
- • **Ergonomic Non-Slip Grip:** Comfortable fiberglass handle ensures maximum control even with gloves on.
- • **Precision Serrated Blade:** Effortlessly slices through foam and fiberglass insulation with surgical accuracy.

## Overview

The Klein Tools 31733 Insulation Knife features a durable 3CR13 serrated stainless steel blade designed for precision cutting of foam and fiberglass insulation. Its lockback mechanism ensures the blade stays securely open during heavy-duty use, while the folding design protects both the blade and your gear. With an ergonomic non-slip fiberglass handle and integrated lanyard hole, this compact, lightweight tool is engineered for professional reliability and convenience on every job.

## Description

Klein Tools 31733 Insulation Knife, Cuts Foam and Fiberglass with Serrated Stainless Steel Folding Blade and Lockback Mechanism

## Features

- SERRATED PRECISION BLADE: Effortlessly cut through foam and fiberglass insulation
- 3CR13 STAINLESS STEEL BLADE: Built for heavy-duty insulation tasks
- LOCKBACK MECHANISM: Secures blade open for sturdy cutting
- ENHANCED PROTECTION: Folded blade safeguards tool pouches, bags, and pockets
- HEAVY DUTY DESIGN: Cuts as easily as fixed blade insulation knives
- NON-SLIP GRIP HANDLE: Ensures comfortable handling
- VERSATILE CONVENIENCE: Integrated lanyard hole for easy tethering

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Blend |
| Brand | KLEIN TOOLS |
| Color | Multi |
| Item Length | 11.9 Inches |
| Handle Material | Fiberglass |
| Blade Material | Stainless Steel |
| Item Weight | 0.54 Pounds |
| Style | Folding Utility Knife |
| Manufacturer | Klein Tools |
| UPC | 092644317330 |
| Global Trade Identification Number | 00092644317330 |
| Part Number | 31733 |
| Item Weight | 8.6 ounces |
| Item model number | 31733 |
| Is Discontinued By Manufacturer | No |
| Size | One Size |
| Finish | Brushed |
| Pattern | Solid |
| Shape | Rectangular |
| Power Source | hand_powered |
| Item Package Quantity | 1 |
| Special Features | Folding |
| Included Components | Klein Tools 31733 Insulation Knife |
| Batteries Required? | No |
| Warranty Description | Please refer to attached warranty document. |

## Product Details

- **Material:** Blend
- **Brand:** KLEIN TOOLS
- **Color:** Multi
- **Item Length:** 11.9 Inches
- **Handle Material:** Fiberglass
- **Blade Material:** Stainless Steel
- **Item Weight:** 0.54 Pounds
- **Style:** Folding Utility Knife
- **Manufacturer:** Klein Tools
- **UPC:** 092644317330

## Images

![Klein Tools 31733 Insulation Knife, Cuts Foam and Fiberglass with Serrated Stainless Steel Folding Blade and Lockback Mechanism - Image 1](https://m.media-amazon.com/images/I/41GubV8EgyL.jpg)
![Klein Tools 31733 Insulation Knife, Cuts Foam and Fiberglass with Serrated Stainless Steel Folding Blade and Lockback Mechanism - Image 2](https://m.media-amazon.com/images/I/61QH4azy9vL.jpg)
![Klein Tools 31733 Insulation Knife, Cuts Foam and Fiberglass with Serrated Stainless Steel Folding Blade and Lockback Mechanism - Image 3](https://m.media-amazon.com/images/I/61+WOO9bs0L.jpg)
![Klein Tools 31733 Insulation Knife, Cuts Foam and Fiberglass with Serrated Stainless Steel Folding Blade and Lockback Mechanism - Image 4](https://m.media-amazon.com/images/I/61blWOtxwUL.jpg)
![Klein Tools 31733 Insulation Knife, Cuts Foam and Fiberglass with Serrated Stainless Steel Folding Blade and Lockback Mechanism - Image 5](https://m.media-amazon.com/images/I/61RA22Bxl1L.jpg)

## Frequently Bought Together

- Klein Tools 31733 Insulation Knife, Cuts Foam and Fiberglass with Serrated Stainless Steel Folding Blade and Lockback Mechanism
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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-20*