flat double bevel chisel bit square chisel chainsaw file

It is important that the top-plate cutting angle and side-plate angle be precise. Square-ground filing is much more challenging than round file filing and requires different techniques.Įxample with 45°: the chisel file angle can vary from 30° to 45°įull chisel chain sharpened with flat files is less forgiving of errors compared to round file, The full chisel has square-cornered teeth, splitting wood fibres easily for fast, efficient cutting in clean softwood. The term “square-ground filing” refers to the process of using a flat bevel file to sharpen saw chain cutters by hand.

If you are serious about square ground chain you need to read it. There is an excellent guide on how to do this here. Using the Granberg clamp on file guide is essential for getting this type of chain sharpened right as then you can set and duplicate the complex angles. The three-sided type is particularly suited to sharpening 3/8″ or 404’’ chains However you can return square ground chain to general chisel chain by using a round file to sharpen it.Įasier to handle but not as effective as the double chisel, for people who want to get familiar with square ground filing. Square ground chain is incredibly hard to sharpen. This is for x1 chisel bit file – the files are x12 more expensive than normal chainsaw round files probably to do with the much lower production volumes. Granberg filing guide recommended if you want to square grind your chisel chain. Vallorbe square file for sharpening square ground chain. Yes these are expensive – you only get x1 file for this price! But no one else currently offers them other than Vallorbe.

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Flat double bevel chisel bit square chisel chainsaw file