Edge tuning help
Picked up a dakine edge tool today. Pretty simple looking but not for a noob like me. The file is double sided and i don't know which side to use to sharpen my edges. One side is kind of a hex pattern while the other is diagnol lines. Also, how do i hold it when sharpening? sorry for hte general questions, i don't have much time on the computer right now.
Hope you can help,