Zero Tolerance ZT 0350 handle scales
Zero Tolerance ZT 0350 handle scales
The Zero Tolerance 0350 (often called ZT 0350) is an iconic assisted-opening folder that became a flagship model and bestseller for the brand
Zero Tolerance launched in 2006 under Kai USA (parent of Kershaw), targeting hard-use tactical knives for military, law enforcement, and first responders—emphasizing USA-made, overbuilt construction
Early models (2006–2008) like the 0300 (designed by Ken Onion and Mick Strider) were massive beasts with SpeedSafe assisted opening and premium CPM S30V steel, earning praise as "real beasts" but often too large for everyday carry
To bridge the gap to practical EDC, ZT collaborated with renowned designer Ken Onion (SpeedSafe inventor) for a scaled-down version. The ZT 0350 debuted in 2009 (confirmed by official ZT history and product records)—10% smaller and lighter than the 0300, with 3.25" CPM S30V blade (modified recurve drop-point, often DLC/Cerakote coated), textured black G-10 scales over stainless liners, liner lock, quad-mount clip, and SpeedSafe flipper for fast, glove-friendly deployment
At ~6.2 oz and ~7.625" open, it balanced aggressive toughness with portability—priced around $160–$200 initially. It exploded in popularity for its smooth action, edge retention, and reliability, spawning variants (0350ST, tiger stripe 0350TS in 2013, later MagnaCut updates)
The ZT 0350 remains a benchmark for overbuilt EDC, proving ZT's evolution from tactical specialist to versatile premium folder leader