How To Use A Parting Tool

If using an indexable part-off tool check that the cutting insert is in good condition.

How to use a parting tool. Video on how to properly sharpen and use HSS parting blades. Ill show you different types grinding tips and a few suggestions for saving s. Inspect the parting tool closely before using.

Stand the tool on edge on the tool rest with its blade at a 90 angle to the workpiece. If this is necessary part the workpiece off with an extra bit of material. Use one hand to hold the parting tool.

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. Parting tools of almost any sort seldom give the best possible finish. The blank is already heat treated so no special metallurg.

The other hand is ready to catch the turning as the wood separates and comes off of the lathe. As you do this practice looking at the horizon rather than directly at the cutting edge. The method of laying a parting tool on its side shown below is often taught but a difficulty arises when you use a diamond shaped tool.

On a practice spindle use a parting tool to cut two grooves near its center about 38 apart and 516 deep. I show how to make a 18 parting tool for woodturning from a HSS tool blank purchased from Amazon. That is look across the top of the spindle where you can see the curve in profile.

I could use a wide beadingparting tool like the one he made. When machining with long overhangs it is especially important to mount the bar correctly to ensure enough clamping contact. Touch the tip of the tool to the workpiece at the 1030 position when viewed from the tailstock Photo J.