1. Check the cutting tool to be sure it is sharp and not damaged.
2. Make sure the tool cutting edge is correctly positioned and on the centerline of the workpiece.
3. Check to be sure the Tool Holder is securely mounted.
4. If possible, reduce the length of the bar that extends from the Tool Holder.
5. Use the largest diameter boring bar possible for the workpiece diameter to increase tool stiffness.
6. If the workpiece is long, shorten the overhang or change the order of machining to increase workpiece stiffness.
7. Make sure the Depth-of-Cut is not too high on the final pass.
8. Use the Override control to change the Speed and Feed rates until the finish improves. Note the percentage used and calculate and enter new rates if allowed by shop practice.
9. Check the depth of cut and adjust as required.