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🔪 Cut sharp, work smart — the ultimate blade for pros who demand precision and power.
The Goldblatt Insulation Knife features an 8-inch double-sided serrated stainless steel blade designed for smooth, chip-free cutting of insulation materials like rockwool, styrofoam, and foam. Its ergonomic soft-grip handle reduces fatigue and doubles as a hammer, while the included nylon sheath ensures safe storage and portability. Built for durability and versatility, this tool is perfect for professionals tackling insulation, gardening, and lawn repair tasks.



































| ASIN | B0B87Y6HRX |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #22,318 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #122 in Utility Knives |
| Blade Edge | Compound Bevel |
| Blade Material | Metal, Stainless Steel |
| Blade Shape | Drop Point |
| Blade Type | Serrated |
| Brand | Goldblatt |
| Brand Name | Goldblatt |
| Color | Red |
| Customer Package Type | Retail Packaging |
| Customer Reviews | 4.6 out of 5 stars 460 Reviews |
| Hand Orientation | Ambidextrous |
| Handle Material | Bamboo,Stainless,Stainless Steel,Steel |
| Included Components | Sheath |
| Is Product Cordless | Yes |
| Item Length | 13.19 Inches |
| Item Shape | rectangular |
| Item Weight | 0.25 Kilograms |
| Model Name | Goldblatt Insulation Knife |
| Part Number | G08511 |
| Power Source | [Manual Power] |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Utility |
| Reusability | Reusable |
| Special Feature | Lightweight |
| Special Features | Lightweight |
| Style | Compact |
| Theme | Gardening |
| UPC | 084389085117 |
| Unit Count | 1.0 Count |
H**S
Absolutely fantastic for cutting rockwool on my recent shed insulaton project
This is essentially a long, serrated bread knife with a coarse and finer serration. The length and super comfortable handle make it perfect for cutting rockwool insulation. It's easy to handle and looks great. The included sheath is a nice touch though this wasn't particularly useful for me. In any case, the knife is nice and sharp and feels premium, appropriate for the price. I'll probably never need to use it again but it made insulating my shed a LOT easier.
J**E
Very effective and good quality
My wife and I put down 4 pallets of sod using this knife to cut pieces as needed. The course blade was very efficient / effective for doing this.
K**N
Value, Quality
Perfect for my “ Sod Job.
A**R
Velcro and quality of product
Works great cuts smooth quality brand only downside or bad thing is the Velcro strap is short and does not wrap around snuggly to secure knife on the holder now positive note u can attach this to ur belt will add pic later on
D**E
Stays sharp, make installation very efficient
This knife is definitely worth the money if you’re looking to install rockwool or similar insulations. I’ve Installed about 500 square feet of rockwool insulation with this knife and it seemed to stay sharp throughout the process. The knife length is a huge plus as it allows you to hold the insulation up against the wall and easily accomadate fire blocks, out of plumb studs, and electrical boxes with ease. Get this knife along with gloves, a tyvek suit, and a mask.
T**.
Excellent cutter for stone insulation. Not sure about fiberglass insulation.
This thing is sharp! Cut through the stone insulation like a hot knife through butter, even the smaller pieces. Be careful with this baby!
A**N
Wool insulation knife
I used it to cut wool insulation and it worked really well.
D**L
Beast of a knife
Bought this to cut rockwool insulation R15 for my crawl space, I had 28 bundles to work with, each bundle has 12 batts, I’ve cut on tables, concrete and rock, and this knife has done great. I have not resharpened the blade and after 248 batts it’s finally starting to dull. It has 2 sides which I used the “wavy” side for over 80% of the cutting which just slices through with ease, I’m just not flipped it over to use the serrated side. Definitely a great buy!!!
R**O
Gigino
Ottimo prodotto
K**R
Awesome knife!
Cuts foilback insulation like butter
S**R
Efficiency and quality
What's you see is what's you get..fast delivery
M**S
Maravilloso
Magnífico
E**E
Wie Butter
Schneidet bei Minusstoffdämmplatten wie Butter.
Trustpilot
1 week ago
1 week ago