Zenoah GZ4350 Manuel D'utilisation page 36

Filing equipment and filing angles
Use a Zenoah file gauge to sharpen the saw chain. A
Zenoah file gauge makes sure that you get the correct
filing angles. The part numbers are given in the table
below.
H30 4.8 mm / 3/16 in
36
If you are not sure how to identify the type of saw chain
on your product, refer to www.zenoah.com for more
information.
0.025 in / 0.65
505 69 81-27 30°
mm
85°
320 - 008 - 24.10.2018