- Is the blade long enough to produce trauma or a fatal injury in an attacker?
- Does the blade configuration limit it to either thrusting or slashing efficiently?
- Can you access the knife with either the left or right hand?
- Can you open the knife with both the left and right hand?
- Can you powerfully grip the knife with the tip up and tip down?
- Can you deploy (i.e.) open the knife while moving?
- Does the knife have safeties and/or blade locks?
- Is the knife expensive enough that you will hesitate to use it or leave it behind?
For more things to think about when choosing and carrying a folder check out this article as well... and safe carry!