Grip-Rite Stone Wool Insulation Knife, 8-in Stainless Steel Blade, 1-Blade
SKU: 38730491899

Grip-Rite Stone Wool Insulation Knife, 8-in Stainless Steel Blade, 1-Blade

Sale price$10.40 Regular price$11.56
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Description

Grip-Rite Stone Wool Insulation Knife, 8-in Stainless Steel Blade, 1-BladeGrip Rite Stone Wool Insulation Knife Purpose built knife for cutting stone wool and mineral wool insulation cleanly. Features an 8 in serrated stainless steel blade and an ambidextrous plastic handle for control and comfort on the job. Key Features: Insulation Specific Design: Serrated stainless steel blade slices through stone wool mineral wool with minimal effort Durable Blade: 8 in stainless steel construction resists rust and maintains a sharp

Grip-Rite Stone Wool Insulation Knife

Purpose-built knife for cutting stone wool and mineral wool insulation cleanly. Features an 8-in serrated stainless steel blade and an ambidextrous plastic handle for control and comfort on the job.


Key Features:

  • Insulation-Specific Design: Serrated stainless steel blade slices through stone wool/mineral wool with minimal effort
  • Durable Blade: 8-in stainless steel construction resists rust and maintains a sharp edge
  • Comfort Grip: Plastic handle shaped for right- or left-handed use
  • Jobsite Ready: Fixed, non-retractable blade with no on-tool storage for straightforward performance
  • Single-Blade Pack: Includes one knife for immediate use

Specifications Table:

Specification Details
Blade Length 8 in
Blade Width 7/8 in
Blade Material Stainless steel
Blade Type Serrated, non-retractable, non-folding
Handle Material Plastic
Handle Length 4 in
Ambidextrous Handle Yes
Number of Blades Included 1
On-Tool Blade Storage No
For Use on Stone/Mineral Wool Yes
For Use on Cardboard No
Multi-surface No
Package Quantity 1
Warranty None
Finish Family Steel-stainless
UNSPSC 27111500
Prop 65 Warning (CA) No

Frequently Asked Questions (FAQ):

Q: Is this knife suitable for cutting fiberglass or drywall?
A: It’s optimized for stone wool/mineral wool; while it can cut other soft insulation, it is not designed as a general drywall or utility knife.


Q: What is the blade material and length?
A: Stainless steel, 8 inches long with a serrated edge.


Q: Is the handle comfortable for left-handed users?
A: Yes, the plastic handle is designed for both right- and left-handed use.


Q: Does the blade fold or retract?
A: No, it is a fixed, non-retractable blade.


Q: How wide is the blade?
A: Approximately 7/8 inch wide.


Sculpt Clean Lines Through Dense Insulation

This sleek, serrated blade glides through stone wool like silk, delivering crisp, tailored cuts that make installs feel bespoke. I love the polished stainless steel against the bold red handle—functional yet striking. Pair it with a precise straightedge to create pristine seams and professional finishes behind the walls. It’s a small luxury that elevates the craft of insulation to an art form.


Cut cleaner, faster, and with confidence—add this Grip-Rite insulation knife to your toolkit today.

Shipping Notes
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Exchange/Return Notes
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SKU: 38730491899

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Azn User in the PNW
Natrona Heights, US
★★★★★ 5
Audiobook conveys message even better than author’s eloquent, precise words in a book
Format: Audiobook, Format: Audiobook
Target audience: non-narcissistic people who have been adversely impacted by pathologically narcissistic individuals. “It’s Not You” is one of those books where the audiobook *greatly* enhances, optimizes & completes the reader’s understanding of the author’s message & information. Read-by-the-author audiobooks have the advantage of having emphases & nuances conveyed as the author intended. And this author verbal communication is highly nuanced & expressive. Ramani Durvasula not only has the credentials, depth of experience & cohesive understanding of pathologies of the human psyche, especially Axis II conditions, she has the rare combination of experience & competency to diagnose & treat both: 1) a) pathological individuals w/narcissistic thought & behavior patterns &/or b) NPD patients meeting diagnostic criteria (“treat” includes attenuate, not necessarily “cure”, esp conditions w/ poor prognosis) 2) those adversely impacted by the damage inflicted on people in the pathological individual’s lives. At the risk of being repetitive, this book is aimed at the 2nd population. In online spaces, Durvasula has been criticized by the 1st population, which is to be expected. Combating, destroying ANY *perceived* criticism is an *expected* part of narcissistic pathology (as well as avoidantly attached individuals, many of whom are also narcissistic). This book is an excellent companion to the solid, publicly accessible online via her videos (free) as well as the modestly priced online healing program. Finding good resources to help those affected by the pathological narcissist is an incredibly challenging task. Rare are the “counselors”, “therapists” & other resources who can truly help make genuine, sustainable substantial headway on the task of recovering from adverse impacts inflicted by pathological narcissists. Ramani Durvasula’s resources are the opposite - practically makes up for wasted time & resources “auditioning” ineffective therapists, reading books, attending group therapies etc. While my personal tool kit for recovery is evolving (as is the science), Durvasula’s material, including “It’s Not You” is a permanent part of my tool kit. As of Nov 2024, additional & complementary resources I’ve found helpful: - “It’s Not You” is a well complemented by: Peter Solerno’s Aug 2024 The Nature and Nurture of Narcissism: Understanding Narcissistic Personality Disorder from the Perspective of Gene - Environment Interaction, a book I purchased for the citations/bibliography & have been delightfully surprised by the writing. . . Solerno & Durvasula are stylistic different in their delivery. I sincerely appreciate both. - Work & online material of Les Carter. - Jackson MacKenzie’s books RIP
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Reviewed in the United States on December 1, 2024
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Darrell Hudson
Natrona Heights, US
★★★★★ 5
Healing from a narcissistic organization/ family member
Format: Hardcover
Dr. Ramani does a excellent job helping victims of narcissistic relationships in this book. As a brown male who was part of an organization and had a family member who had narcissistic tendencies, I needed help returning back to myself. This book helped in every way to become free and heal from these relationships, and not return back to those types of relationships. Thanks for writing this book, Dr Ramani!
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Reviewed in the United States on May 6, 2026
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Cajun59
West Palm Beach, US
★★★★★ 4
Detailed Window to Narcissism
Format: Kindle
This book answered a lot of questions I had about narcissism. I have been on the fence about labeling a certain person in my life as a narcissist, but this book helped me recognize the behaviors that I have seen in this person in my life. I agree with a lot of the author's thoughts about how narcissism effects the people that are hurt by this disorder, but I did not agree in her belief about forgiveness in the matter of dealing with a narcissist. Forgiveness is a hard thing to practice but It does set you free from the heavy things that way a person down. It was also sad to accept the belief that narcissists will never change but in my heart, I believe that it is true. I appreciated her style of writing this book. At times it felt like the author was sitting in my living room and talking directly to me. I also liked how the author explained certain psychological terms in a way that most people could understand. I have read other books on narcissism, but I think this book gave me the best definitions and examples of this hurtful and destructive disorder.
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Reviewed in the United States on February 23, 2026
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Health Mama
Port Orchard, US
★★★★★ 5
very important book
Format: Kindle
If you are a victim of narcissistic abuse, It’s Not You could be a revolutionary, transformative, healing read. I just finished it and feel a deep gratitude to Ramani Durvasula, PhD for dedicating her life to sharing, as she calls it, “the story of the lion” not the hunter.
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Reviewed in the United States on May 30, 2026
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Lyla
Lexington, US
★★★★★ 5
deeply insightful
Format: Hardcover
A deeply insightful and comforting book that helped me better understand unhealthy relationship patterns. The author explains complex emotional topics in a very relatable way. I couldn’t put it down.
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Reviewed in the United States on May 19, 2026

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