Oregon 520-110 vs Harbor Freight chainsaw chain grinders. 

Sure, as long as you could hold the bit and cut "down" with the rock. A rock like this is not designed to be side loaded. You are better off to take your time in making a holding jig to use the face of a bench grinder or learn to sharpen them freehand (like I do)...

Both grinders will do any fleam angle, so yes. You can grind at 0° up to whatever you want.

The only difference between them is that both will do 10° fleam, but the 520 is adjustable for rake as well as adjustable for up and down angle of the grind as well. The HF grinder is adjustable for fleam angle alone and is fixed down angle for rake. No table adjustment for up or down grind angle.

@@williamprophett9148 great thans, just was wondering it it would work to convert a regular chain into a ripping for alaskan milling

Absolutely. In about 3 minutes for a 36"...

GFY... You don't need to announce your departure like a little, needy, bitch.