Blade lock
The ability to block the blades while the tool is not in use.
Blade locking can be carried out in different ways, but the principle of its operation in all cases is the same: a special mechanism holds the blades in place, preventing them from opening and preventing unwanted contact of the cutting edges with surrounding objects. This provides additional security during storage and transportation.
Detachable blade
The presence
of a removable blade(blades) in the design of the tool. This feature provides additional convenience and savings. First, the blade is usually more convenient to sharpen and clean by removing it from the tool; secondly, a damaged blade can be replaced with a new one purchased separately — this is cheaper than purchasing a whole new tool.
Finger loop
The presence
of a loop for the fingers in the design of the tool. Such a loop is used in one-handed tools: it is usually installed on one of the handles, four fingers are threaded into it, opposing the thumb. Such a device provides additional convenience and reliability in holding the tool (reduces the likelihood of letting it out of hand), and also provides some protection from branches and other foreign objects.
