How To Use A Lathe Parting Tool

Tips Techniques Parting or cutoff is the operation of cutting a piece off by slicing a groove all the way through it with a special parting tool or cut off tool.

How to use a lathe parting tool. Parting is one of the most misunderstood machining operations on the lathe. Next I took the blade over to the disk sander and ground it down to bare metal. Shape it a little on the disk sander and fine tune the cutting tip.

Now start the lathe at a few hundred RPM. This video covers how to properly grind the tool how to set the tool so it is ri. We recommend to use a sub-spindle if available.

Then advance the cut toward the groove by pivoting the tool on the tool rest. I got it looking nice and shiney looked pretty good. If using an indexable part-off tool check that the cutting insert is in good condition.

Just an experienced opinion that a light lathe is better off with a rear mounted parting tool if it can be solidly mounted there and the lathe run in the normal direction. Inspect the parting tool closely before using. Parting uses a blade-like cutting tool plunged directly into the workpiece to cut off the workpiece at a specific length.

Swing the handle to the right and rotate it to the left as before to initiate the cut. If it cannot be mounted in the rear then it will do better with the tool mounted in front with the blade upside down and the lathe run in reverse. Part-off Tool Inspection.

This cut is always at right angles to the axis of the lathe. These parting tools are generally thin blades of HSS but there are also carbide insert parting tools available for the task or you can grind a cutoff tool out of HSS. Place the tool about 14 to the right of the groove.