How To Grind A Parting Tool

Then I used the disk sander to round off the corners and the wood end of the parting tool.

How to grind a parting tool. For a parting cut the top of the tool should be exactly on the center line of the lathe or no more than005 above the center line. Grinding down too far will have the effect of reducing the blade width and so limits the depth the tool can be plunged. In general the method is to use either a grinder or belt sander and then finish.

To be clear the back rake angle on the P-parallel bits is best controlled by the choice of tool holder. Ill show you different types grinding tips and a few suggestions for saving s. Your goal is to stop the grind at the exact moment it reaches the tip.

You could also simply slide the tool further out of the Varigrind increase the stick-out after grinding the tool and quickly grind back the heel. 1 Its difficult to sharpen the bevels of a parting tool and arrive at the correct side profile with the ears leading the nose. When machining with long overhangs it is especially important to mount the bar correctly to ensure enough clamping contact.

These blanks have flat tops which allow for the grinding of many different shapes. This flattens and dulls the cutting edges but you can use these flat edges as a guide to maintain the desired profile. The un-skewed cutting edge of the parting tools actually makes them much easer to sharpen.

How do you know when the grind is getting to the tip. Often enough to avoid having to face it off in a second op. A different and very effective grind for your parting blade.

Being excited I went to the wood lathe to try out the new parting tool. This video covers how to properly grind the tool how to set the tool so it is ri. What you dont want to do is grind rake into the top of the blade.