There is something exceptionally "smooth" about Kershaw Knives. All of them that we have tested have both smooth hinges and smooth overall construction. Even with heavily textured (and therefore tractioned) handle scales, the Kershaw Blur feels smooth in your hand and pocket. It cuts smoothly and opens even more smoothly. The assisted opening function works great. Our only wish is that the blade could be locked closed since other assisted opening knives lock closed. This pocket knife is an interesting hybrid, application-wise. It has the glass breaker and assisted opening functionality of a "tactical" knife but doesn't go the whole distance with a v-cutter. It is low profile like an everyday carry knife but has the higher weight of a more utilitarian tool. In the end, it is better suited to everyday carry and outdoor adventures, over tactical or construction purposes.Editor's Note: We updated this review for Kershaw Blur Glassbreaker on August 25, 2022, with a closer look at value and a section that highlights other directly comparable products.
Kershaw Blur Glassbreaker Review
Cons: Flat handle profile
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Kershaw Blur Glassbreaker
$68.94 at Amazon
|$165 List||$143.98 at Amazon|
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$45.00 at Amazon
|Pros||Stout, assisted opening||Incredible blade quality, assisted open, perfect combination of compactness/functionality||Light, simple, well-made, full size blade, full-function||Beautifully constructed, assisted open, good value||Sharp looking and cutting, good materials, inexpensive|
|Cons||Flat handle profile||Pricey, blade lock mechanism not intuitive||Expensive, low profile handle, flexy plastic construction||Slender handle makes it hard to apply even pressure, thin blade is fragile||Less-than-ideal pocket clip orientation, sharp stowed edges wear clothing|
|Bottom Line||This is a stout, well-made knife for he or she that is seeking some tactical attributes, with a low-profile everyday carry shape||Immaculately constructed knife in a form-factor that is easy to carry and large enough for virtually every task||For a full-function, full-size pocket knife, this is as light as it gets, and is the premier option for all sorts of human-powered adventures||A slender, svelte pocket knife with great materials and a reasonable value||A budget knife that leads its price range in performance and downright impressive quality|
|Rating Categories||Kershaw Blur Glassb...||Benchmade Mini-Barr...||Benchmade 535 Bugout||Kershaw Leek||Sanrenmu 7010|
|Blade and Edge Integrity (30%)|
|Construction Quality (20%)|
|Other Features (10%)|
|Specs||Kershaw Blur Glassb...||Benchmade Mini-Barr...||Benchmade 535 Bugout||Kershaw Leek||Sanrenmu 7010|
|Weight||4.0 oz||3.4 oz||1.9 oz||3.1 oz||3.2 oz|
|Blade Length||3.4 in||2.8 in||3.0 in||2.9 in||2.7 in|
|Blade Material||Sandvik 14C28N stainless steel||154CM stainless steel||S30V stainless steel||Sandvik 14C28N stainless steel||8Cr13MoV stainless steel|
|Handle Material||Anodized aluminum||Plastic||Grivory||410 stainless steel||Stainless Steel|
|Blade Style||Drop Point, hybrid straight/serrated||Drop point, straight||Drop point, straight||Drop point, straight||Straight|
|Blade locks closed?||No||Yes||No||Yes||No|
|Opening Style||Assisted, ambidextrous thumb stud||Assisted, ambidextrous thumb stud||Ambidextrous thumb stud||Assisted, ambidextrous thumb stud; back-of-knife finger tab||Ambidextrous thumb stud|
|Lock Mechanism||Liner lock||Proprietary (Axis)||Proprietary (Axis)||Frame lock||Frame lock|
|Carry Style||Pocket clip and lanyard hole||Pocket clip and lanyard hole||Pocket clip and lanyard hole||Pocket clip and lanyard hole||Pocket clip and lanyard hole|
|Closed Length||4.6 in||4.0 in||4.2 in||4.0 in||3.7 in|
|Overall Length||8.0 in||6.9 in||7.4 in||7.0 in||6.5 in|
|Thickness (w/o pocket clip)||0.4 in||0.6 in||0.4 in||0.3 in||0.4 in|
|Other Features or Functions||Glass breaker||None||None||None||None|
Our Analysis and Test Results
As an all-metal knife with a "high traction" handle, the Kershaw Blur stands out. Top it off with smooth operation, proven blade design, and an assisted opening function, and you've got a pocket knife that is right in contention with the best of the best. Full-sized knives with assisted-open function, multiple carry options, and excellent blades will always do well in our scoring matrix. This is because they do well for the user.
Blade and Edge Integrity
There are many variables that inform the blade and edge performance of a pocket knife, especially over time. A knife designer often starts by selecting the material. The steel chosen is often where an assessment of a blade ends. We like to look more closely, as good designers are also looking more closely. The material must be shaped, ground, sharpened, and heat treated. Each of these steps has a profound impact on the eventual edge integrity. Finally, every blade, no matter what the manufacturer says, must be resharpened periodically through its lifespan. The Blur has an excellent blade. The steel holds an edge longer than you might expect. The hollow ground blade feels precise and thin in food and light tasks, while the steep edge bevel won't break down in rougher work.
We tested the hybrid straight/serrated version. It can be purchased with a fully straight blade, also. Since straight blades are easier to sharpen, we generally prefer those. We recommend serrated blades for those cutting tons of rope and webbing.
The Blur is "full-sized," with dual thumb studs and a spring-assist that allows for an easy one-handed opening. The flat, profiled aluminum side plates are textured.
This size (overall length of 8 inches, handle length 4.6 inches) is suited to most hand sizes. Our only ergonomics wish was that the side plates were slightly rounded. Other high-scoring knives have a handle profile that fills the hand more readily. For heavy use, a rounded handle profile is better than the flat shape of the Blur.
You can carry the Blur a few different ways. Of course, you can drop it loose in a pocket. In this way, the aluminum edges of the blade and the pointed glass breaker will likely accelerate wear on your pocket fabric. You can reverse an included pocket clip for either tip-up or tip-down carry. Finally, there is a lanyard hole in the pinky end of the handle. Weight and bulk, overall, are typical for full-sized pocket knives. The .4" thickness is lower profile than most full-sized knives.
Every knife that scores better than the Blur in this metric is quite a bit smaller. Compared to the other full-sized knives, the lower profile stature and the reversible pocket clip set it apart.
Finding a high-end, mass-produced pocket knife with full aluminum scales is rare. This attribute, plus the Blur's light hinge and smooth locking mechanism, lends a confidence-inspiring feel to the Blur. In many product categories, our three-month test is enough time to draw out durability concerns. With pocket knives, a type of equipment often handed down through many generations, at three months of even heavy use, we are just scratching the surface. We had no problems with the durability and construction quality of the Blur. We only wish the construction included a feature to lock the blade closed. Assisted opening blades are more prone to accidental opening than "regular" blades.
The only other feature on the Blur is the "glass breaker." This is just a steeply sharpened, hardened-steel nub on the pinky end of the handle. Accessible whether the blade is open or closed, one can use this to lead a swinging fist through tempered glass. We have never tested this attribute of a pocket knife, but trust the experience of those that have.
Should You Buy the Kershaw Blur Glassbreaker?
The Kershaw Blur is super stout. The all-metal handle and thick blade add weight but inspire confidence. The thin handle profile and configurable pocket clip suggest everyday carry suitability. Now, you might choose the Blur over other options for size, blade stoutness, and the glass breaker. Quality and additional features aside, it is tough to justify the additional cost of the Blur.
What Other Pocket Knives Should You Consider?
Knife prices are all over the map. Both Kershaw knives we tested have assisted opening blades and the same steel in that blade, so they make for a good comparison point. For a simple pocket knife, the Kershaw Leek is significantly cheaper than the Blur. But if you're willing to buy a knife at this price point, consider the award-winning Benchmade Mini-Barrage 585.
— Jediah Porter
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