knife of Improved / Tools

In daily life,sometimes hard tool harmful to our health,the time when we pencil,thumb will push back the utility knife blade,when the blade out of a long,it becomes relatively soft, easily broken,in both cases, will have an impact on our health.The improved knife design purpose is to protect our health.Increasing the use of force area to reduce pressure principle,the back of the blade to increase the width of a finger for our hard plastic holder,both reduce the back of a knife injury to our fingers, but also fixed out of the blade.Knife in line with shell following the curve of hand shape,can make us more secure to use utility knife.