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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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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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
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 38730491899

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Jason Dusterwald
Waukegan, US
★★★★★ 4
Fine Simple Product, Works as Advertised
Size: 3-Panel
Performs as advertised, a simple upright divider. I use it to mark my "office" space when working from home. Assembly was straightforward and well documented. One person can do it, but a second person can be helpful when sliding the fabric divider pieces onto their poles. Part quality is fine for the price point. The only mild annoyance is that the upright poles can start getting loose from the metal feet, and need to be retightened occasionally (Allen wrench is included, keep it handy for retightening). It's fairly lightweight and easy to reposition, but the feet are heavy enough to keep it steady once placed. All in all, a good product. I was pleased enough to buy a second one when my son wanted something to block sunlight from behind his computer desk.
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Reviewed in the United States on August 18, 2025
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Verified Purchase
Sheila Cash
San Leandro, US
★★★★★ 1
Wobbly and Poor Design
Size: 1-Panel
Update: nope! Not worth the money. My cat simply brushed against the divider, and it fell, knocking breakable things over. Not safe! It serves it's purpose, but...the screws were basically glued to the packaging. It took me longer to get the screws out of the packaging than it did to put it together. The assembly was easy. I am not mechanically inclined by any means, but the instructions, despite being very hard to read (I have over 40 eyes), were pretty simple. Structurally, it is very wobbly. I think they should have designed it with a middle rod to keep it more stable. I find that the attachments to the rods are wobbly and should have been screwed rather than popped into an attachment hole without reinforcement. That would have also made the room divider more stable. I have cats, but the material is easy to clean. I took a damp cloth to it, and it came right off. As far as see-through...I think it does a great job of masking theO other side of the room.. I just wish it was a little longer and closer to the floor stand. I like that it came with extra parts. It's just a very cheaply made item, and I don't think the price for the item reflects how cheaply it is made, how wobbly and unstable it is, or the poor design.
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Reviewed in the United States on March 15, 2025
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Verified Purchase
David T Stark
Charlottesville, US
★★★★★ 5
Very good room divider
Size: 6-Panel
I ised this to isolate a storage area in my apartment. Looks better than boxes.
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Reviewed in the United States on January 22, 2026
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Jodie
Birmingham, US
★★★★★ 3
Taking forever but worth it
Size: 1-Panel, Size: 1-Panel
Love the product. However, trying to take the screws etc out of its box, it’s almost impossible due to the adhesive inside it. I have neck and arm issues so for me it was even more difficult. Adhesive stuck to each washer and screw so I had adhesive all over my hands then I had to get it off of the items.
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Reviewed in the United States on April 21, 2025
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Oulu family
Massapequa, US
★★★★★ 5
Good value for the money.
Color: Black, Size: 6 Panel
This partition package is a great value. I looked at many options and this one had long length to cover an entire room with the six partitions. The pieces went together easily, took about 30 minutes to assemble and has the needed Allen wrench included. It is stable with no fear of being easily knocked down. The black fabric does not completely hide everything and if there is a light on the inside, it can illuminate what is going on. It does the job but if you wanted complete privacy you would need thicker material. Overall it does what I need in that it make a TV room into a kind of guest room of sorts.
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Reviewed in the United States on May 20, 2026

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