---
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: "1048922₫"
currency: VND
in_stock: true
reviews_count: 8
category: "Malco"
url: https://www.desertcart.vn/products/12826002-malco-dk6s-double-sided-smooth-and-serrated-duct-knife-sheath
store_origin: VN
region: Vietnam
---

# 6-inch double-edged blade ergonomic 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:** 1048922₫
**Availability:** ✅ In Stock

## Summary

> 🔪 Cut smarter, not harder — the last duct knife you'll ever need!

## 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?** 1048922₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/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

- • **Safety First:** Includes a puncture-resistant nylon sheath with a secure belt loop and Velcro strap for on-the-go protection.
- • **Built to Last:** Cutlery-grade steel blades that stay sharp and are fully resharpenable.
- • **Ambidextrous Design:** Perfectly balanced for both left and right-handed professionals, ensuring seamless handling.
- • **Comfort Meets Control:** Ergonomic rubberized cushioned grip reduces hand fatigue during extended 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 wool duct and duct board. It boasts an ergonomic rubberized cushioned grip for comfort, a puncture-resistant nylon sheath with belt loop and Velcro strap for safety, and is fully resharpenable to maintain peak performance. Trusted by pros, it’s ambidextrous and built for durability and versatility on the job.

## 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: Great Quality - Excellent knife, stays on my tool belt

## 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 |
| Best Sellers Rank | #24,150 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #32 in Knife Blades |
| Blade Edge | Plain, Serrated |
| Blade Length | 6 Inches |
| Blade Material | Alloy Steel |
| Blade Shape | Straight |
| Brand Name | Malco |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,167) |
| Global Trade Identification Number | 00686046531175 |
| Hand Orientation | Ambidextrous |
| Handle Material | Rubber |
| Included Components | Punture Resistant Nylon Sheath |
| 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 |
| Power Source | Hand Powered |
| Recommended Uses For Product | Cuts flexible-fiberglass wool, duct board |
| Reusability | Reusable |
| Special Features | Puncture Resistant Nylon Sheath. Serrated Edge. Double edged, cutlery grade steel blades. |
| Style | Knife |
| UPC | 686046531175 |
| Unit Count | 1.0 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)

## 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.

### ⭐⭐⭐⭐⭐ Great Quality
*by O***N on July 29, 2025*

Excellent knife, stays on my tool belt

### ⭐⭐⭐⭐⭐ 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.

## 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.vn/products/12826002-malco-dk6s-double-sided-smooth-and-serrated-duct-knife-sheath](https://www.desertcart.vn/products/12826002-malco-dk6s-double-sided-smooth-and-serrated-duct-knife-sheath)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-06-04*