Comparison Console
Zero Tolerance 0550 vs Zero Tolerance 0566
EDC Knives comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Zero Tolerance 0566 stands out as the lightest option for weight, with about a 9% gap from the closest alternative. Zero Tolerance 0566 stands out as the cheapest option for retail price, with about a 20% gap from the closest alternative.
Decision Signals
What stands out
Zero Tolerance 0566 stands out as the cheapest option for retail price, with about a 20% gap from the closest alternative.
Zero Tolerance 0550 stands out as the most expensive option for retail price, with about a 25% gap from the closest alternative.
Zero Tolerance 0566 stands out as the lightest option for weight, with about a 9% gap from the closest alternative.
Zero Tolerance 0550 stands out as the heaviest option for weight, with about a 9% gap from the closest alternative.
Zero Tolerance 0566 stands out as the shortest option for closed length, with about a 4% gap from the closest alternative.
Zero Tolerance 0550 stands out as the longest option for closed length, with about a 4% gap from the closest alternative.
Zero Tolerance 0566 stands out as the shortest option for blade length, with about a 7% gap from the closest alternative.
Zero Tolerance 0550 stands out as the longest option for blade length, with about a 7% gap from the closest alternative.
Specification Profile
Relative dimensions at a glance
Each axis is normalized against the largest raw value among the products in this comparison. Farther outward means a larger value, not necessarily a better result. Axes with an unverified value are omitted.
Price & carry
Retail price
US$250Most expensive
US$200Cheapest
Weight
164.5 g (5.80 oz)Heaviest
150.3 g (5.30 oz)Lightest
Dimensions
Blade length
89 mm (3.50 in)Longest
83 mm (3.27 in)Shortest
Overall length
206 mm (8.11 in)Longest
196 mm (7.72 in)Shortest
Closed length
118 mm (4.65 in)Longest
113 mm (4.45 in)Shortest
Blade thickness
4.1 mm (0.16 in)Thickest
3.96 mm (0.16 in)Thinnest
Materials & mechanism
Blade steel
CPM S35VN stainless steel
CPM S35VN
Handle material
G10, titanium, stainless steel
Textured G10 front, stainless steel back
Finish
Stonewash
Stonewashed
Lock type
Frame lock
Frame lock
Opening method
Flipper, thumb stud
SpeedSafe assisted opening system (flipper, thumb stud)
Clip type
Ambidextrous 4-way steel pocket clip
Deep-carry quad-mount clip (tip-up/tip-down, left/right)
Use case profile
Best for
Hard useTactical applicationsEveryday carry
Everyday carry (EDC)Heavy duty useAmbidextrous carry
Not best for
Lightweight useFine slicing
Unknown
Common praise
Durable build qualityExcellent edge retentionSolid ergonomicsAmbidextrous opening options
Robust and sturdy constructionExcellent edge retention and toughness of CPM S35VN steelGood grip with textured G10 and ergonomic handleSmooth and rapid assisted openingQuad-mount deep-carry clip allows versatile carry optionsWell balanced size for EDC
Common complaints
Detent is excessively strong making blade opening difficultHandle G10 scale pattern is polarizingWeight may be heavy for some users
Heavier compared to titanium framed alternativesSome users find assisted opening aggressiveInitial lock stick that can go away with use
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