Sharpen saw - is that possible?


When a saw has become dull, it does bad work. The cuts become inaccurate, and a lot of power is needed. Which types of saws you can sharpen, and what you have to pay attention to, you will learn in detail in this post.

Sharpenable saws

Basically all saws and saw blades are sharpenable. For especially hardened saw blades or saw teeth, however, this is a problem - you can only work with professional tools (diamond tools), otherwise the saw would remove material from the file instead of the other way round.

Handsaws can usually sharpen quite well, a circular saw blade can be sharpened well. The chainsaw chain should also be sharpened regularly.

Do you want to sharpen or sharpen yourself?

Sharpening saws requires a bit of skill and experience. If done improperly, you can damage or even destroy the saw. In addition to the actual sharpening, other works are also regularly necessary:

  • dressing the saw or the saw blade
  • checking and correcting the offset
  • Correcting the tooth shape of the saw

For this you need a professional tool. At least necessary are:

  • a file for clamping the saw
  • a pliers
  • a set of saw files adapted to the different cuts of the saws used

The cost of these tools is not very high - usually comes with 50 - 60 EUR. In comparison, sharpening saws or saw blades can be quite expensive.

For saw chains and circular saw blades, there are quite easy-to-use devices already from around 25 EUR in the trade. Here, the self-sharpening is worthwhile in any case. Also for hardened circular saw blades, there are special sanding attachments for a small extra charge, so that you can also sharpen these leaves.

Sharpen hardened tool yourself

Theoretically one can sharpen with diamond files also hardened saw teeth. However, this is not always successful, and the quality of the sharpening is not optimal. Especially for such tools, a professional sharpening service is recommended. This is worthwhile in this case, because the life of the saw (the time in which it retains its sharpness) is much higher with a hardened tool.

Important when sharpening

  • The geometry of the saw must not be changed
  • Always restrict teeth in the direction they are set at the factory (otherwise tooth fracture is threatening)
  • After dressing, always check tooth form and correct with as few strokes as possible
  • Always use files to match the tooth pitch of the saw
  • Note the filing angle, if necessary, use filing guide with protractor
  • Always clamp the saws so that the teeth protrude just above the vise or filing unit, which prevents vibrations and ensures more accurate work

Tips & Tricks

Do not wait too long sharpening. The more frequently sharpened, the less material is required to be removed, and the less the saw will wear - the overall life of the saw will often increase significantly.


Video Board: How to Sharpen a Hand Saw | Ripsaws