Zero Tolerance 0990

The Zero Tolerance 0990 is an American-made, sleek, modern, and highly functional everyday carry folding knife featuring a 3.25-inch CPM 20CV stainless steel blade with stonewashed finish, carbon fiber and stainless steel handle, and a fast KVT ball bearing flipper opening mechanism with liner lock.

Last updated16 July 2026

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Weight82.2 g (2.90 oz)

PriceUS$264

Blade steelCPM 20CV stainless steel

Lock typeLiner Lock

Technical Specs

Specifications

CategoryFolding Knife

Blade length83 mm (3.27 in)

Overall length193 mm (7.60 in)

Closed length112 mm (4.41 in)

Blade thickness3.1 mm (0.12 in)

Handle materialCarbon Fiber and Stainless Steel

FinishStonewashed

Opening methodFlipper

Clip typeReversible, deep-carry pocket clip, tip-up carry

Carry Profile

Best for

▣Everyday Carry▣Precision Cutting▣Durable Outdoor Use▣Fast Deployment

Limitations

Not best for

!Heavy Chopping Or Hard Use Beyond Standard EDC Tasks

Field Signals

Common praise

✓

Excellent edge retention and corrosion resistance of CPM 20CV blade

✓

Smooth and fast flipper deployment thanks to KVT ball bearings

✓

Durable and lightweight carbon fiber and stainless steel handle

✓

Strong and reliable liner lock with hardened steel insert

✓

Ambidextrous reversible pocket clip for tip-up carry

Watchlist

Common complaints

⚠

None explicitly cited in the provided sources

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