The 6 Best Insulation Knives

Updated March 15, 2017 by Jeff Newburgh

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We spent 24 hours on research, videography, and editing, to review the top selections for this wiki. Though some cutting tools may appear very much the same when you first consider their purpose and application, you'll still appreciate the efficiency of one of these dedicated insulation knives when the time comes for precision work near fiberglass ducts or areas around the house where outlets and fixtures are being installed. Their sturdy blades and ergonomic grips also make them easy to use. When users buy our independently chosen editorial picks, we may earn commissions to support our work. Skip to the best insulation knife on Amazon.

6. Klenk DA71010

Good for almost any industrial professional who may be carrying a lot of gear to and from job sites, the Klenk DA71010 boasts a truly lightweight design at only 5.6 ounces with a rubber molded grip. Its sharp blade will also cut right through flexible ducts and duct board.
  • versatile double-edged profile
  • ripstop nylon sheath
  • velcro strap is rather flimsy
Brand Klenk Tools
Model DA71010
Weight 5.6 ounces
Rating 4.1 / 5.0

5. Klein Tools DK06

The Klein Tools DK06 offers the best of both worlds when it comes to HVAC system applications, thanks to the blade's double-sided design featuring both regular and serrated edges. Its puncture-resistant nylon sheath will also keep it fully protected when not in use.
  • belt loop attachment
  • cushioned grip makes it easy to use
  • requires sharpening often
Brand Klein Tools
Model DK06
Weight 11.2 ounces
Rating 4.1 / 5.0

4. Hultafors 389010 FGK

Built for superior comfort, the Hultafors 389010 FGK is equipped with an ergonomic handle made from impact-resistant plastic, and a fully-serrated, 50-millimeter blade for effortless, precise, and straight cutting through many types and layers of insulation wool.
  • it is made in sweden
  • price is relatively affordable
  • it's a bit on the bulky side
Brand Hultafors
Model 389010
Weight 0.3 ounces
Rating 4.3 / 5.0

3. Vintool Wizard Professional

Whether it's carpet, ceiling tile, fiberglass or foam board insulation that needs attention, the Vintool Wizard Professional can accommodate it. The combination of its stainless steel and aluminum construction ensures both its longevity and performance over time.
  • blade is reversible
  • helps reduce hand fatigue
  • handle has extra storage space
Brand Insulation Knife by VIN
Model Insulation Knife
Weight pending
Rating 4.9 / 5.0

2. Morakniv Craftsmen 7350

The Morakniv Craftsmen 7350 is a professional-grade construction tool with a steel blade and sturdy plastic handle for supporting almost any hand size, even when wearing heavy gloves. A limited lifetime manufacturer's warranty is also included.
  • over 13 inches long
  • easily cuts through mineral wool
  • lightweight design
Brand Morakniv
Model M-141-7230
Weight 9.6 ounces
Rating 4.9 / 5.0

1. Bullet Tools CenterFire

Designed to efficiently cut through foam and fiberglass batt insulation, the Bullet Tools CenterFire measures 7 inches, which is twice the length of most of its standard-sized competition. Its lack of serration also prevents the build-up of dust and debris while working.
  • perfect for professional contractors
  • fits most reciprocating saws
  • 2-stage ceramic sharpener
Brand Bullet Tools
Model CK50-1110
Weight 5.6 ounces
Rating 4.5 / 5.0

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Last updated on March 15, 2017 by Jeff Newburgh

A dedicated writer and communications professional spending his days lost in the intricacies of both proposal and freelance writing. When not sharing the knowledge of both fully and self-insured medical benefits to employer groups of all industries within California, Jeff Newburgh can be found at home spending time with his family and 3 dogs, pondering the next chew toy to be thrown, while kicking back and relaxing with a nice glass of red wine.

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