【Premium Saw Chain Sharpener】This chainsaw sharpener is made of high quality ABS plastic and durable whetstone. Three sharpening stones are provided for replacement. Please note that the grinding wheel has high wear resistance, keep the chain and guide rod oiled to reduce friction and help extend product life, so you can continue to use this saw sharpener chain all the time. 【Safe and Fast】 Protect your hands from injury. You don't need to touch the inside with your hands when using the tool. It is very safe to use. The bar type chainsaw sharpener provides a quick and easy method of sharpening the chainsaw. It only takes 3 5 seconds to sharpen the chainsaw, which greatly improves productivity and saves time. . The most practical tool and best gift for your father or husband【Suitable for 14 20 inch chainsaw chain】 This chainsaw blade sharpener is designed with 2 holes for fix the sharpening knife, one hole is fixed, the other is adjustable, very flexible to install. If the blade is single hole, you can unscrew 6 screws then remove the movable sliding rivet, then install and use it. It is suitable for 14/16/18/20 inch chainsaw chain, except 16 inch ECHO chainsaw. 【Easy to use and carry】 This blade sharpening kit chain saw is lightweight and portable, it is easy to use outdoors. Simply install the sharpening stone correctly, attach the chainsaw to the sharpener hole, then close and lock the portable chainsaw sharpener. Finally, easily clamp the foot of the chainsaw sharpener and start using it. You can sharpen your tools anytime and anywhere. 【3 Detachable Sharpening Stone】 The sharpening stone sharpener is detachable and replaceable. If it is loose after opening the package, don't worry, you can open the chain sharpening kit and reinsert the stone into the black clamps which are designed to secure the stone, ensuring that the tool can do the job well.