Comparison Console
Microtech Amphibian Auto vs Zero Tolerance 0551
EDC Knives comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Zero Tolerance 0551 stands out as the lightest option for weight, with about a 5% gap from the closest alternative. Zero Tolerance 0551 stands out as the cheapest option for retail price, with about a 18% gap from the closest alternative.
Decision Signals
What stands out
Zero Tolerance 0551 stands out as the cheapest option for retail price, with about a 18% gap from the closest alternative.
Microtech Amphibian Auto stands out as the most expensive option for retail price, with about a 23% gap from the closest alternative.
Zero Tolerance 0551 stands out as the lightest option for weight, with about a 5% gap from the closest alternative.
Microtech Amphibian Auto stands out as the heaviest option for weight, with about a 5% gap from the closest alternative.
Zero Tolerance 0551 stands out as the shortest option for closed length, with about a 15% gap from the closest alternative.
Microtech Amphibian Auto stands out as the longest option for closed length, with about a 17% gap from the closest alternative.
Zero Tolerance 0551 stands out as the shortest option for blade length, with about a 10% gap from the closest alternative.
Microtech Amphibian Auto stands out as the longest option for blade length, with about a 11% 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$337Most expensive
US$275Cheapest
Weight
170.1 g (6.00 oz)Heaviest
162 g (5.71 oz)Lightest
Dimensions
Blade length
99.06 mm (3.90 in)Longest
89 mm (3.50 in)Shortest
Overall length
235.62 mm (9.28 in)Longest
206 mm (8.11 in)Shortest
Closed length
137.16 mm (5.40 in)Longest
117 mm (4.61 in)Shortest
Blade thickness
Unknown
Unknown
Materials & mechanism
Blade steel
Bohler M390MK stainless steel
Elmax
Handle material
G10 (fluted black)
Titanium & G-10
Finish
Stonewash (one version), Apocalyptic (another version)
Stonewashed
Lock type
Ram-Lok (crossbar lock)
Frame lock
Opening method
Thumb Stud
Thumb Stud
Clip type
Reversible titanium tip-up pocket clip
Pocket clip (tip-up, reversible for left/right, tip-up or tip-down carry)
Use case profile
Best for
Everyday carryHeavy-duty EDCAmbidextrous use
Everyday carry (EDC)Hard use knifeTactical situations
Not best for
Unknown
Unknown
Common praise
Innovative Ram-Lok crossbar lock for secure and smooth operation.High-quality Bohler M390MK blade steel.Ambidextrous thumb stud and reversible pocket clip allows left or right carry.Durable fluted black G10 or titanium handle with secure grip.Made in the USA with high craftsmanship.
High quality fit and finishVery strong and durable steel (Elmax) bladeRobust titanium frame lockErgonomic handle with textured G-10 scaleAmbidextrous thumb studs for easy openingReversible pocket clip for varied carry optionsBlade is sharp and holds edge wellKnife is sturdy and solid, suitable for heavy use
Common complaints
Unknown
Relatively heavy at 162 grams, which might not suit all usersPrice is on the higher end for folding knives
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