Nathan Graff
ArboristSite Operative
I was filing a used chain the the Husky 365, and I found some cutters that had a really deep gullet cut, but the edge of the cutter wouldn't allow the file to bite. So, I switched to a flat file to take the edge of the cutter back a bit. No dice. The file skated over the edge like you want to happen on Forged in Fire.
As I couldn't figure out any other way to do it, I took a fein angle grinder with a cut off disk and lightly dusted the edge off till it looked like the gullet was shallow enough to be sharpened with a file. I was very careful not to burn the cutter. Just enough pressure to cut properly, and for a second or 2 at a time with about 5 seconds off.
So, what causes cutters to harden like that, or could that be a factory defect in the cutter? Anyone else run into this 'issue'?
It was an Oregon chain btw.
As I couldn't figure out any other way to do it, I took a fein angle grinder with a cut off disk and lightly dusted the edge off till it looked like the gullet was shallow enough to be sharpened with a file. I was very careful not to burn the cutter. Just enough pressure to cut properly, and for a second or 2 at a time with about 5 seconds off.
So, what causes cutters to harden like that, or could that be a factory defect in the cutter? Anyone else run into this 'issue'?
It was an Oregon chain btw.