[Lis2323]

This is what I use http://www.magna-matic.com/mag-1000.html only mine is a bazillion years old.

I have an extra one if anyone is interested. Not sure if this is appropriate here but PM me.

To the OP-- nice job!!

 

[Lis2323]

All I ever do is measure, scribe a line and grind to the mark. Has worked for me for over 30 years

We run 15 1/2 foot fine cut rotary mowers (small by turf farm standards) with 60HP spinning nine 6 pound+ blades.

Blade balance is critical.