Premium Quality: Chainsaw sharpener made from high quality and durable materials, the chainsaw sharpening tool is installed inside the sharpener to keep the chain and guide rod, reducing the friction and extending life. This bar mounted pencil sharpener is durable, lightweight, and it can quickly and easily attach to the end of the guide bar. Easy to use and carry :Chainsaw blade sharpening kit, lightweight and portable, the chainsaw sharpening tool is easy to use outdoors. You dont need to put more than time to work, unlike sharpening more time, save your time. It has two guide pins that secure the sharpener mounted to the bar ensuring perfect alignment between the stone and the cutter. EASY AND QUICK SHARPENING: This chain saw sharpener provides a quick and easy method of sharpening chain. chain saw. The stihl chainsaw sharpener is lightweight, portable and easy to use outdoors, protecting your hands from injury. In just 3-5 seconds your chainsaw chain will be sharp again. Your hands dont need to touch the whetstone, just press down on the chainsaw.