- Dec 26, 2017 -
1. A lot of utility knives are handled at the polyline process for easy breaking, but these treatments may be dangerous for left-handed people and should be handled with care.
2. The blade can not extend too much, so not only difficult to cut, but also easy to break the blade.
3. The blade should be slightly extended when it is extended.
4. Do not use the blade must be put away to avoid injury.