Sharpeners: Timberline, Totile (knockoff Timberline), Granberg, Stihl, PRETEC, EzzDoo, and Honoson. Let’s compare the chainsaw sharpeners that are designed to sharpen chainsaws while the chain is still mounted on the saw. I previously tested chainsaw sharpeners to include bench mounted ones that require removing the chainsaw chain from the saw. Chainsaw sharpeners compared for speed of sharpening chains, durability, sharpness of sharpened chainsaw chisel, and cutting speed of sharpened chain through a test log. I buy everything used in the reviews and decline all sponsorships to ensure the most unbiased reviews possible. So, thank you for supporting the channel! ➡ Thank you very much for supporting the channel through Patreon: https://www.patreon.com/projectfarm ➡ Thank you for supporting the channel through memberships: null ➡ An easy way to find past videos along with products tested: http://bit.ly/2FCrBpk A big thanks to Jim for putting this together. ➡ Merch: project-farm.com ➡ Click here if you'd like to subscribe: https://www.youtube.com/channel/UC2rzsm1Qi6N1X-wuOg_p0Ng ➡ As an Amazon Associate I earn from qualifying purchases. ➡ Products Tested In This Video (in no particular order): Stihl: https://amzn.to/3QOCbf3 Granberg: https://amzn.to/3MBa3tE Timberline: https://timberlinesharpener.com/shop/ PRETEC: https://amzn.to/3SrIKpi EzzDoo: https://amzn.to/3u831WT Honoson: https://amzn.to/49oPRoy Totile: https://amzn.to/47nbUtR Videography Equipment: Canon EOS R6 Mark II: https://amzn.to/4aErF18 Canon 70D Camera: https://amzn.to/31b5Gy0 Azden Microphone: https://amzn.to/34d3DLE Go Pro Bundle: https://amzn.to/3Ca0ZVN This video is only for entertainment purposes. If you rely on the information portrayed in this video, you assume the responsibility for the results.