How To Sharpen A Lathe Cut Off Tool

If you get better results by not doing soyou are doing something WRONG and need to re-examine the geometry of your tool bit.

How to sharpen a lathe cut off tool. Next look up the typical angles for the workpiece material and then follow the steps in Figure A2. Be careful dont even run a finger along the length of the sharpened edge. With a standard bowl taking between 30 minutes to an hour and that they sharpen their tools about twice then it means that it will take the tool between 15 -30 minutes for their tools to get dull.

One method is to run your thumb across the edge. Simply turn the wheel on and draw the tool across the surface of the stone. How to Sharpen HSS Cut Off Blade for a Lathe.

This is easy to do using a diamond sharpening tool. For a while now Ive wanted to have a way to sharpen my metal lathe cutting tools. This time is not an exact science since it is affected by so many variables.

The end result should be the point of the parting tool be ground to a sharp squared of point. Shown below is what Ive put together to achieve the level of accuracy desired. If using HSS parting blades grind andor hone the cutting edge to ensure its sharp.

The bur is what does cutting at the time of lathing a spindle or a bowl. The lathe tool to be sharpened is held or clamped against the guide and passed repeatedly over the face of the grinding wheel. As I noted in my Sharpening Handbook httpsharpeninghandbookinfo these are not easy to sharpen in a normal manner.

The work was fed across the edge of the grinding wheel with a light inward pressure to make the cut. If using an indexable part-off tool check that the cutting insert is in good condition. The grinding rest was tipped to give the required side clearance relief and the fence adjusted to give the side cutting edge angle.