Will not damage the human or shaft.
When you replace your grip, you must first have to remove your old grip.In that case, the grip cutter is used.
You can also cut the old grip with ordinary cutters, but it may damage the shaft, and sometimes cause injury to yourself.
In that way, the dedicated grip cutter will not damage the shaft and prevent injuries by cutting it as if used correctly, so it is recommended for those who are interested in replacing their grip.