1, Spyderco:Spyderco is a tool brand headquartered in Colorado, USA. The tool has a unique design and is very convenient to use.
2. Zero tolerance: Zero tolerance is a high-end tool brand owned by Kay Tools. Its hardness can reach 60-6 1HRC, and its product design and manufacture are excellent, which is deeply loved by many knife friends.
3.CRKT:CRKT is a famous tool brand in the United States, and its blade hardness can reach 60-6 1HRC, which is deeply loved by many outdoor enthusiasts.