Sharpen the saw: This flat file can help you sharpen the saw for efficient work and save energy Steel: Made of the best quality steel, durable and long lasting for years' use Measure depth: With a depth gauge, it can measure depth and very convenient to use Lightweight: Suitable for almost all types of chainsaws. Lightweight and compact size, easy to store and use Practical tool: Utility saw sharpener kit for forestry or agricultural workers