Comparison Console
Spyderco Police 4 vs Zero Tolerance 0640
EDC Knives comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Spyderco Police 4 stands out as the lightest option for weight, with about a 5% gap from the closest alternative. Spyderco Police 4 stands out as the cheapest option for retail price, with about a 1% gap from the closest alternative.
Decision Signals
What stands out
Spyderco Police 4 stands out as the cheapest option for retail price, with about a 1% gap from the closest alternative.
Zero Tolerance 0640 stands out as the most expensive option for retail price, with about a 2% gap from the closest alternative.
Spyderco Police 4 stands out as the lightest option for weight, with about a 5% gap from the closest alternative.
Zero Tolerance 0640 stands out as the heaviest option for weight, with about a 5% gap from the closest alternative.
Zero Tolerance 0640 stands out as the shortest option for closed length, with about a 16% gap from the closest alternative.
Spyderco Police 4 stands out as the longest option for closed length, with about a 19% gap from the closest alternative.
Zero Tolerance 0640 stands out as the shortest option for blade length, with about a 14% gap from the closest alternative.
Spyderco Police 4 stands out as the longest option for blade length, with about a 17% 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$264Cheapest
US$268Most expensive
Weight
119 g (4.20 oz)Lightest
125 g (4.41 oz)Heaviest
Dimensions
Blade length
111 mm (4.37 in)Longest
95.25 mm (3.75 in)Shortest
Overall length
253 mm (9.96 in)Longest
215.9 mm (8.50 in)Shortest
Closed length
143 mm (5.63 in)Longest
120.65 mm (4.75 in)Shortest
Blade thickness
3 mm (0.12 in)Thinnest
3.96 mm (0.16 in)Thickest
Materials & mechanism
Blade steel
K390
CPM 20CV stainless steel
Handle material
FRN
Titanium with green carbon fiber overlay
Finish
Unknown
Stonewashed flats with satin grinds on the blade, stonewashed titanium handle
Lock type
Back Lock
Titanium frame lock with hardened steel lockbar insert
Opening method
Thumb hole (Trademark Round Hole)
Thumb disk, manual opening
Clip type
Four-position pocket clip
Reversible tip-up pocket clip
Use case profile
Best for
Extreme cutting challengesEveryday carry
Everyday CarryWorkTactical
Not best for
Unknown
Unknown
Common praise
Excellent edge retentionStrong and durable blade steelLightweight constructionVersatile clip positionsReliable back lock mechanism
High wear resistance and edge retention due to CPM 20CV steelGood corrosion resistanceSecure titanium frame lock with hardened steel insertAmbidextrous one-handed opening with thumb diskErgonomic and visually interesting handle with green carbon fiber overlaysMade in the USA
Common complaints
Unknown
Unknown
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