1、Easy to Carry: The chainsaw sharpener is light and small which makes it easy for you to carry and use it anywhere you want to grind your chainsaw. It is convenient and efficient. 2、Security Performance: You have no need to make contact with the whetstone when you use the chainsaw sharpener which avoids unnecessary hurt to your hands. There is little danger since you just press the chainsaw sharpener lightly and the saw is incisive. 3、High Efficiency: The chainsaw sharpener is designed for outdoor use you just take it in your bag when you want to sharpen your saw press it for 3?5s the saw is incisive. That is very efficient. 4、Long Life Span: The shell of the chainsaw sharpener is made of plastic which is strong and wear resistance. The shell prolongs the service span of the chainsaw sharpener. 5、Reasonable Structure: The chainsaw sharpener consists of a plastic sharpener and a whetstone. The whetstone is suitable for the sharpener mounted on the pole and the plastic shell provides a long time of use.