Enoki cuts backyard grass by brush cutter. The chip saw was blunt.
The brush cutter recovered sharp, as Enoki replaced the blunt chip saw.
The pocket shape of chip saws are very different. Enoki doesn't know whether new shape is better or worse.
Comparing with new chip saw edge, the edge of the old one is worn and blunt as shown in Photo2.
It is necessary for a socket wrench to loosen or fasten the nut as shown in Photo3. The nut is CCW screw. Rotating the wrench CW, the nut will be loosen.
Taking a photo of chip saw edge yearly, worn status might be known.
© Enoki 2021 August 22