Frame lock

Frame lock is a locking mechanism for folding knives where part of the metal handle acts as the blade lock. It offers greater strength than a liner lock and is the standard on premium tactical and EDC knives.

What is a frame lock

A frame lock works on the same principle as a liner lock, but instead of a thin liner, it uses part of the titanium or steel handle itself. This design provides a larger contact area and greater durability.

Frame lock characteristics:

• Integrated design: The lock is part of the handle
• Titanium handle: Typical for quality knives
• High strength: Withstands greater stress
• One-handed operation: Easy to open and close

Frame lock vs liner lock

Advantages and limitations

Frame lock advantages:

• Strong blade lockup
• Longer mechanism lifespan
• Ergonomic handle profile
• Premium look and feel

Limitations:

• Higher purchase price
• Heavier than alternatives
• Limited handle material options

Popular frame lock knives

Premium brands use frame locks:

• Chris Reeve Sebenza: Defined the modern frame lock
• Zero Tolerance: Tactical knives with titanium
• Kizer: More affordable titanium knives
• WE Knife: Premium Chinese production

Related terms: liner lock, folding knife, titanium, EDC, axis lock