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7/8-in 1 -Blade Utility Knife

Ratings & Reviews for Grip-Rite 7/8-in 1 -Blade Utility Knife

4.7
155
Review
 4.7 out of 5
156 Reviews


97% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

This insulation knife appears to be an effective tool for cutting various types of insulation, such as rockwool and mineral wool. Many reviewers praised its ability to cleanly and easily cut through the material, with the serrated blade and comfortable handle highlighted as key features. While a few suggested a regular knife could work as well, the majority found this specialized knife to be a worthwhile investment, particularly for larger insulation projects.

Customer review summary generated by AI, including incentivized reviews.
156 Customer Reviews

It’s fine

Great product for the price. Does what we need it to.

May 12, 2026
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Good knife at affordable price

Would Recommend

Makes cutting rigid insulation cleaner and accurate

May 7, 2026
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Online order.

Would Recommend

Product was ready for pickup quickly

May 6, 2026
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Makes it easy

Would Recommend

Cut through the insulation easily, glad I had this tool.

May 2, 2026
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Its a knife.

Would Recommend

It cut craft backed fiberglass smoothly once started. Glad I had it while i was on the ladder. Haven’t tried rockwool yet.

April 21, 2026
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Good quality for the price

Would Recommend

Easy to use

April 17, 2026
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Worth it to make the job faster

Would Recommend

Light and easy to handle

April 16, 2026
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Cuts good

Would Recommend

Works as it should

April 8, 2026
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Worth it

Would Recommend

Smooth, easy use. Well worth the price

April 3, 2026
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GREAT!

Would Recommend

If you intend to use rockwool insulation, you will be regretting not getting this. Slices through rockwool like butter. Blade is long enough to get the job done. Can make precise cuts around outlets.

March 27, 2026
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Does it’s job

Cuts mineral wool well

February 13, 2026
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Insulation

Would Recommend

Works on fiberglass and Rockwool but not blue jean insulation.

February 12, 2026
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Ok tool

Would Recommend

Ok product

February 10, 2026
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Does the job.

Would Recommend

This is great for cutting the Rockwool Safe & Sound batts and the Rockwool comfort batts.

January 24, 2026
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Sharp

It’s sharp

January 17, 2026
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Nice tool

Exactly what I needed when putting insulation in my basement!

December 31, 2025
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Makes cutting wool insulation easy peasy

Would Recommend

Cuts like butter,glad I piked it up

December 26, 2025
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