---
product_id: 12826002
title: "Malco DK6S Double-Sided Smooth and Serrated Duct Knife with Sheath, For Cutting Flexible Duct and Ductboard, Ergonomic Cushion Grip, Resharpenable Cutlery Grade Steel Blades"
brand: "malco"
price: "161.94 DT"
currency: TND
in_stock: true
reviews_count: 13
url: https://www.desertcart.tn/products/12826002-malco-dk6s-double-sided-smooth-and-serrated-duct-knife-sheath
store_origin: TN
region: Tunisia
---

# 6-inch double-edged blade ergonomic rubberized cushioned grip puncture-resistant nylon sheath Malco DK6S Double-Sided Smooth and Serrated Duct Knife with Sheath, For Cutting Flexible Duct and Ductboard, Ergonomic Cushion Grip, Resharpenable Cutlery Grade Steel Blades

**Brand:** malco
**Price:** 161.94 DT
**Availability:** ✅ In Stock

## Summary

> 🔪 Cut sharp, work smart — the only knife your toolkit will ever crave!

## Quick Answers

- **What is this?** Malco DK6S Double-Sided Smooth and Serrated Duct Knife with Sheath, For Cutting Flexible Duct and Ductboard, Ergonomic Cushion Grip, Resharpenable Cutlery Grade Steel Blades by malco
- **How much does it cost?** 161.94 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/12826002-malco-dk6s-double-sided-smooth-and-serrated-duct-knife-sheath)

## Best For

- malco enthusiasts

## Why This Product

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

## Key Features

- • **Multi-Task Mastery:** Perfect for flexible fiberglass ducts, duct board, and even garden tasks—your all-in-one cutting companion.
- • **Ergonomic Comfort Grip:** Rubberized cushioned handle designed for fatigue-free, confident handling during extended projects.
- • **Safety Meets Convenience:** Puncture-resistant sheath with 2-3/4 inch belt loop and Velcro strap keeps your knife secure and accessible.
- • **Built to Last & Resharpen:** Cutlery-grade alloy steel blades that stay sharp and can be renewed for long-term use.
- • **Dual-Edge Precision Cutting:** One serrated, one smooth blade for versatile, clean cuts every time.

## Overview

The Malco DK6S is a professional-grade duct knife featuring a 6-inch double-edged cutlery steel blade with one serrated and one smooth edge, designed for precision cutting of flexible fiberglass ducts and duct board. It includes an ergonomic rubberized grip for comfort, a puncture-resistant nylon sheath with belt loop and Velcro strap for secure carry, and resharpenable blades for lasting performance. Highly rated by pros for versatility and durability, it’s the ultimate tool for tradespeople and DIYers alike.

## Description

Product Description Duct Knife, Cutting Length 6 In., Overall Length 10 In., Handle Design Ergonomic Rubberized Cushioned Grip, Handle Color Black, Material Stainless Steel Blade, Features Resharpenable Double-Edge Blade has One Side Serrated and One Side Knife Edge, Blade Pierces Outer Skin, Insulation And Liner Of Flexible Round Fiberglass Wool Duct, Cuts In Either Direction, Includes Punture Resistant Nylon Sheath From the Manufacturer For cutting flexible fiberglass wool duct and duct board. Double edge blades are ideal for blind cuts in flex duct. Ergonomic cushion grip features one serrated cutting edge and comes with a puncture-resistant nylon sheath.

Review: Best Ever - Best ever knife! best I ever got off desertcart! and I have bought alot! that kinife is super sharp the serrated blade is the sharpest I ever had out of the box. It's not just for cutting batton it will cut almost anything! If I had to have only one knife for any and everything including some of those pricey EDC one's this is it.
Review: Works as a Hori knife - Got this as a less expensive and more durable alternative to the trendy Hori Hori knives used in gardening. Use for cutting turf, slicing roots, weeding, splitting perennial clumps, planting bulbs, cutting ties and wire and other garden tasks. Works great in that application. Whenever I go out into the garden I have this strapped on.

## Features

- Puncture Resistant Nylon Sheath.
- Serrated Edge.
- Heavy duty double edged, cutlery grade steel blades.
- Resharpenable Blades
- 2-3/4 Inch Wide Belt Loop and Velcro Safety Strap on Sheath

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001943YPE |
| Age Range (Description) | limited time |
| Age Range Description | limited time |
| Best Sellers Rank | #66,735 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #87 in Knife Blades |
| Blade Edge | Plain, Serrated |
| Blade Length | 6 inches |
| Blade Material | Alloy Steel |
| Blade Shape | Straight |
| Blade Type | Double-edged |
| Brand | Malco |
| Brand Name | Malco |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.7 out of 5 stars 1,210 Reviews |
| Global Trade Identification Number | 00686046531175 |
| Hand Orientation | Ambidextrous |
| Handle Material | Rubber |
| Included Components | Storage Case |
| Item Length | 10 inches |
| Item Type Name | Malco DK6S Double-Sided Smooth and Serrated Duct Knife |
| Item Weight | 2.4 ounces |
| Manufacturer | Malco |
| Model Name | Malco DK6S Double-Sided Smooth and Serrated Duct Knife |
| Model Number | DK6S |
| Number of Items | 1 |
| Part Number | DK6S |
| Power Source | Hand Powered |
| Recommended Uses For Product | Cuts flexible-fiberglass wool, duct board |
| Reusability | Reusable |
| Size | 6" |
| Special Feature | Puncture Resistant Nylon Sheath. Serrated Edge. Double edged, cutlery grade steel blades. |
| Special Features | Puncture Resistant Nylon Sheath. Serrated Edge. Double edged, cutlery grade steel blades. |
| Style | Knife |
| UPC | 686046531175 |
| Unit Count | 1 Count |
| Warranty Description | Limited |

## Product Details

- **Age Range (Description):** limited time
- **Blade Length:** 6 inches
- **Blade Material:** Alloy Steel
- **Brand:** Malco
- **Handle Material:** Rubber
- **Included Components:** Punture Resistant Nylon Sheath
- **Model Name:** Malco DK6S Double-Sided Smooth and Serrated Duct Knife
- **Recommended Uses For Product:** Cuts flexible-fiberglass wool, duct board
- **Special Feature:** Puncture Resistant Nylon Sheath. Serrated Edge. Double edged, cutlery grade steel blades.
- **Style:** Knife

## Images

![Malco DK6S Double-Sided Smooth and Serrated Duct Knife with Sheath, For Cutting Flexible Duct and Ductboard, Ergonomic Cushion Grip, Resharpenable Cutlery Grade Steel Blades - Image 1](https://m.media-amazon.com/images/I/51BgbcRDuHL.jpg)
![Malco DK6S Double-Sided Smooth and Serrated Duct Knife with Sheath, For Cutting Flexible Duct and Ductboard, Ergonomic Cushion Grip, Resharpenable Cutlery Grade Steel Blades - Image 2](https://m.media-amazon.com/images/I/71yxMCgvRHL.jpg)
![Malco DK6S Double-Sided Smooth and Serrated Duct Knife with Sheath, For Cutting Flexible Duct and Ductboard, Ergonomic Cushion Grip, Resharpenable Cutlery Grade Steel Blades - Image 3](https://m.media-amazon.com/images/I/71It-hr-tsL.jpg)
![Malco DK6S Double-Sided Smooth and Serrated Duct Knife with Sheath, For Cutting Flexible Duct and Ductboard, Ergonomic Cushion Grip, Resharpenable Cutlery Grade Steel Blades - Image 4](https://m.media-amazon.com/images/I/61+dCPAQrwL.jpg)
![Malco DK6S Double-Sided Smooth and Serrated Duct Knife with Sheath, For Cutting Flexible Duct and Ductboard, Ergonomic Cushion Grip, Resharpenable Cutlery Grade Steel Blades - Image 5](https://m.media-amazon.com/images/I/31huFDC1ruL.jpg)

## Available Options

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

## Questions & Answers

**Q: what is it made of**
A: My husband bought this knife for AC work. He said it's a pretty good knife. I think it had a steel blade and a plastic handle with a cushion that felt kind of like rubber

**Q: Is there a belt loop on the sheath?**
A: Yes there is a belt loop

**Q: Is the sheath replaceable**
A: No it is not

**Q: Is this a full Tang knife?**
A: Unsure but I don’t believe it is by the look of it

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best Ever
*by R***D on November 19, 2025*

Best ever knife! best I ever got off Amazon! and I have bought alot! that kinife is super sharp the serrated blade is the sharpest I ever had out of the box. It's not just for cutting batton it will cut almost anything! If I had to have only one knife for any and everything including some of those pricey EDC one's this is it.

### ⭐⭐⭐⭐⭐ Works as a Hori knife
*by P***D on October 10, 2025*

Got this as a less expensive and more durable alternative to the trendy Hori Hori knives used in gardening. Use for cutting turf, slicing roots, weeding, splitting perennial clumps, planting bulbs, cutting ties and wire and other garden tasks. Works great in that application. Whenever I go out into the garden I have this strapped on.

### ⭐⭐⭐⭐⭐ Great
*by S***E on August 2, 2026*

As good as it gets. Great for cutting flex duct or any type of insulation. Durable light weight and sharp

## Frequently Bought Together

- Malco DK6S Double-Sided Smooth and Serrated Duct Knife
- Knoweasy Zip Tie Tool and Tensioning and Cutting Tool for Plastic or Nylon Cable Tie
- Klein Tools 32768 Impact Driver Set, 3-in-1 SAE Impact Socket and Bit Holder, Flip Socket with 1/4 Nut Driver and 5/16 Nut Driver Hex Sizes, 3 and 5-Inch Lengths, 2-Piece

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**Shop now:** [https://www.desertcart.tn/products/12826002-malco-dk6s-double-sided-smooth-and-serrated-duct-knife-sheath](https://www.desertcart.tn/products/12826002-malco-dk6s-double-sided-smooth-and-serrated-duct-knife-sheath)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-10*