How To Set Up A Parting Off Tool

Make sure the parting tool is perpendicular to the axis of rotation.

How to set up a parting off tool. The tool holder should barely clear the workpiece when the parting tool is installed. There will then be a forward component to the forces acting on the tool pulling it into the work and the backlash present will allow the tool to tend to move. Second if the tip of the parting tool is ground at an angle it will minimize the nib further.

Then use a conventional HSS parting tool cutting to the right to finish the job. Even if the tool is set exactly on centre before parting these effects will tend to force the tool below centre as the work progresses. As I see it the front mounted tool will tend to be forced downwards while the work is trying to climb the tool.

Same thing applies to a facing tool Look at your parting tool and blade and take note of the shape and set up accordingly. Set of 2 HSS Trapezoid Blades 18x 34 Wide x 6 Long for Lathe Parting Cut off Tool Holders-Hard Ground. A good way to do this is to hold the tool against the face of the part.

2 Use a T type parting tool. We recommend to use a sub-spindle if available. 3 Go all modern and use an insert type parting blade.

A parting tool properly set up will not leave a tit so make sure things are on center. The solution when using carbide inserts for parting off it is best only to use then to within a millimetre or two from the middle of workpiece. Set the tools height lay it against the parts face and lock the tool.

Use a tool with the shortest possible overhang and a secure insert clamping for best stability. Ensure that the parting tool is perpendicular to the axis of rotation and that the tip is the same height as the center of the part. Ensure the tip of the tool rests at the same height as the center of the stock.