Best Insulation Knife For Cutting Insulation In June 2025

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Here, we’ll review the top 10 Best Insulation Knife For Cutting Insulation on the market today. We’ll provide an overview of the pros and cons of each product. Read on for our selection of Best Insulation Knife For Cutting Insulation.

To help you in your search, we have completed this list of the Best Insulation Knife For Cutting Insulation.

Top Rated Best Insulation Knife For Cutting Insulation Of 2025

Rank	Product Name	Score
1	DA71000 KLENK TOOLS Dual Duct / Insulation Knife - Rosewood Handle Buy Now	9.7 Buy Now
2	DA71010 KLENK TOOLS Ergonomic Dual Duct / Insulation Knife Buy Now	9.5 Buy Now
3	Fuller Tool 320-0100 Insulation Knife - Double Sided Buy Now	9.1 Buy Now
4	Bullet Tools 7 in. CenterFire Insulation Knife Blade (3pk) for cutting foam Buy Now	8.8 Buy Now
5	Knife, Serrated Stainless Steel Bladed Duct Knife for Flexible Duct and Duct Board Buy Now	8.6 Buy Now
6	Milwaukee 48-22-1921 Smooth Blade Insulation Knife Buy Now	8.3 Buy Now
7	Milwaukee 48-22-1922 Serrated Blade Insulation Knife Buy Now	8.1 Buy Now
8	Grip-Rite Stone Wool Insulation Knife Buy Now	7.8 Buy Now
9	Bullet Tools 7 in. CenterFire Insulation Knife Blade for cutting foam and batt Buy Now	7.5 Buy Now
10	Everhard Long Cut Insulation Knife with 3-5/8" long blade MK46000 Buy Now	7.2 Buy Now

1. DA71000 KLENK TOOLS Dual Duct / Insulation Knife - Rosewood Handle

• A heavier and thicker blade than other duct knives.
• Stainless steel, 3mm blade, serrated on one edge and smooth on the other
• Beautiful rosewood handle with solid brass rivets.
• Designed for the hvac contractor but great for all construction trade professionals
• Slim, reinforced, ripstop nylon sheath included -- designed to hang from your belt.

2. DA71010 KLENK TOOLS Ergonomic Dual Duct / Insulation Knife

• Slim, reinforced, ripstop nylon sheath included -- designed to hang from your belt.
• Designed for the hvac contractor but great for all construction trade professionals
• Stainless steel, 3mm blade, serrated on one edge and smooth on the other
• Longer, sharper and better other duct knives.

3. Fuller Tool 320-0100 Insulation Knife - Double Sided

• Backed by fuller's limited lifetime warranty
• 11" stainless steel blade.
• Composite grip for comfort
• Quality you can depend on.
• Specifically designed to cut mineral wool and other types of insulation

4. Bullet Tools 7 in. CenterFire Insulation Knife Blade (3pk) for cutting foam

• Easily cuts notches and squares around outlets, and circles in sheets
• Non-serrated edge eliminates dust and debris
• Long-lasting carbon steel blade outlasts most other blades
• Handles hard to cut insulation like denim and rockwool
• Flexible blade for quickly cutting expanded foam around windows

5. Knife, Serrated Stainless Steel Bladed Duct Knife for Flexible Duct and Duct Board

• Cushion-grip handle for comfort
• Puncture resistant nylon sheath with belt loop
• Double-edged knife-regular and serrated
• Klein tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... since 1857
• Cuts duct board and flexible duct

6. Milwaukee 48-22-1921 Smooth Blade Insulation Knife

• Smooth blade insulation knife
• The product is easy to use and easy to handle
• The product is highly durable

7. Milwaukee 48-22-1922 Serrated Blade Insulation Knife

• The product is highly durable
• The product is easy to use and easy to handle
• Serrated blade insulation knife

8. Grip-Rite Stone Wool Insulation Knife

• The recommended knife for cutting roxul stone wool insulation
• The product is manufactured in taiwan
• 420-grade stainless steel blade with serrated edge for superior cutting of insulation products

9. Bullet Tools 7 in. CenterFire Insulation Knife Blade for cutting foam and batt

• Long-lasting carbon steel blade outlasts most other blades
• Flexible blade for quickly cutting expanded foam around windows
• Non-serrated edge eliminates dust and debris
• Easily cuts notches and squares around outlets, and circles in sheets
• Handles hard to cut insulation like denim and rockwool

10. Everhard Long Cut Insulation Knife with 3-5/8" long blade MK46000

• Durable plastic handle.
• High carbon spring steel
• Blade is longer than similar style knives. great for roofing iso board.
• Consistent edge quality. sharp on all sides for stabbing and easy cutting.
• Overall length: 7-1/2" - blade length 3-5/8"