Best Insulation Knives 2022 - Top 10 Picks

This is the ultimate buyer's guide to finding the right insulation knives to suit your needs. We review the 10 best insulation knives on the market so you know that your next decision will be a smart one!

When you're trying to select the good insulation knives, there are a lot of factors to consider. This page has everything you need to know in one place.

This guide will help you avoid the pitfalls that come with researching insulation knives.

You don't have to try out every insulation knives to find one that meets your needs. After extensive research and hours of in-person tests, we've found the best insulation knives to be Red Devil 4609 Batting Knife, 8", Brown. There are a lot of sub-par products out there, but this product is one of the highest quality you'll find. Next best option is 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.

Choosing the insulation knives can be a daunting task, especially if you're doing it for the first time. Here's what we recommend based on our extensive research. We've compiled a list of the highest rated insulation knives. The following products are some of the best you can get right now.

List of Top 10 Insulation Knives

Review of Best Insulation Knives

1. Red Devil 4609 Batting Knife, 8", Brown

  • Use for cutting foam and fiberglass insulation
  • Hardwood handle
  • Hardened high carbon, high alloy, stainless steel blade gives enhanced sharpness, edge holding, and ease of re-sharpening
  • Corrosion resistant
  • Click on the Red Devil Link at the top of this page to see more from Red Devil

2. 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

  • 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

3. Hyde Tools 60780 Square Point Knife, 8-Inch by 1-Inch/14-Gauge Wood Handle

  • Hardened high carbon chrome vanadium steel blade
  • Ground and tempered to precise tolerances
  • Smooth hardwood handle
  • Blade is securely riveted and locked in place with a strong nickel plated ferrule

4. Everhard X-Long Cut Insulation Knife 5" blade MK46300

  • Our Longest Blade Yet – The 5″ blade cuts through today;s thicker IsoBoard and other insulation.
  • Consistent Edge Quality – The precision ground blade is double-beveled on all three edges.
  • High Carbon Spring Steel – Hardened and tempered to provide a long-lasting edge with the ideal combination of rigidity and flexibility.
  • Manufacturers List Price $9.50

5. ALLEX Insulation Knife Wood Handle Japanese Stainless Steel 8 Inch Long Cut, Insulation and Styrofoam Cutter with Sheath, Serrated Sharp Duct Knife Tool, Made in JAPAN

  • Utility Insulation Cutting Tool: 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. The handle is wooden, and it fits in your hand.
  • 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 and pipe shaped insulation materials. It has a unique wave blade edge (serrated blade) processing specialized for cutting heat-insulating materials and styrofoam.
  • Safety Blade Case: 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: 13-3/4" / Blade Length: 8" / Blade thickness: 1.5 mm / Weight 5.64 oz / Made in JAPAN

6. Hultafors 389010U Insulation Knife FGK

  • The blade is made from 2" (50 mm) wide carbon steel.
  • A serrated edge makes it easy to cut through all types of insulation.
  • Both the handle and holster and made from super-durable plastic.
  • Cm scale on the blade makes for quick measurements.
  • Holster included.

7. Cable Knife Stripping Tool,Insulation Electrician Knife Insulation Cable Stripper Dismantling Knife Cable Knife Anti-Magnetic Fast Strip Cable Stripper Cutter, 1000V Insulated

  • There are fixed hook-shaped blades, sickle-shaped, guide shoes at the blades, with non-slip handles.
  • Wide range of applications, such as instrument installation and circuit breaking
  • Made of plastic and reinforced glass fiber, the soft plastic material of the handle provides better grip.
  • The blade is made of stainless steel, durable, anti-rust and anti-corrosion
  • Ergonomically designed safety handle for more comfortable grip

8. Dexter-Russell SG142-8TE-PCP Sofgrip, White Handle, 8" Blade

  • Tiger Edge Scalloped blade is Ultra-sharp
  • Cuts through anything including frozen bait
  • DEXSTEEL Stain Free blade
  • Textured non slip handle is soft to the grip
  • Use by professional fishermen

9. Slice 10560 3" Extra Long Insulation Foam Tool, Designed for Foam Cutting, Finger Friendly, Ceramic Blade, Automatically Retracts

  • Slice safety blades' unique cutting edge might seem dull, but it cuts right through your material while keeping you safe! Slice blades are finger-friendly and safe to the touch.
  • Safe and effective sharpness and lasts 11 times longer than steel.
  • Designed for cutting foam, batting, insulation, and other thick, soft materials. Blade auto-retracts for ultimate safety when slider is released.
  • Durable reinforced nylon handle holds up to heavy use. Installed lanyard hole keeps tool handy. Installed blade’s rounded tip guards against punctures. Optional pointed-tip blade (10539) available.
  • Ergonomically designed handle features textured grip. Blade can be adjusted for right- or left-handed use with quick-release, no-tool blade change mechanism.

10. Morakniv Craftsmen 7350 Insulation Knife with Serrated Stainless Steel Blade, 13.8-Inch

  • Professional grade trade knife with serrated stainless steel blade
  • Extra-long serrated blade for cutting insulation
  • Ample-sized plastic handle to fit your hand even when wearing gloves
  • Limited lifetime manufacturer’s warranty.
  • Blade Thickness: 0.06" (1.5 mm), Blade Length: 13.8" (350 mm), Total Length: 19.7" (500 mm), Weight: 8.4 oz. (238g)

Last update on 2022-01-28 / Affiliate links / Images from Amazon Product Advertising API

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