Stone, sand, file, in their respective areas of fitter what are the advantages?
These three things you say are all tools of grinding.File: grinding speed, easy to use, but (forming file) with low accuracy, relatively rough.Whetstone: grinding speed is close to sandpaper, but not as flexible as sandpaper.Sand paper: grinding the slowest, but flexible, you can grinding cylindrical, cylindrical, etc., but the consumption of large, relatively higher cost.
General to choose appropriate file when grinding quantity (circle, semicircle, triangle, flat file), especially in special circumstances (deep hole, a 60 degree angle triangular file).They are suitable for point grinding and surface grinding, and are mostly used for grinding tools (tools).Sandpaper is used for grinding and grinding of shafts (cylinders).There is grinding paste, grinding precise combination (sealing) surface.
