Hand filing square

[hillwilliam]

I can highly recommend Save-Edge files for square chisel filing. They are made for that very purpose, are agressive (fewer strokes required, compared to other files), and stay that way for a LONG time.

Look at "Chisel Bit Files" section on Save Edge | Chainsaw Files & Accessories

Can you find Oberg double-bevel chisel files in your part of the world? They were made in Sweden and were all I would use when I could still get them.

 

[3000 FPS]

To the OP. You like to file freehand without a guide. Then my best recommendation is to get a magnifier visor like the one DC is wearing in the picture of him. I have one 8x from my watch repairing days and it will let you see exactly where you are filing. When I square file that is what I use. The higher the magnification the closer to the work you will need to be so if 8X is too strong go lower.