Honing is a method of precision machining of holes or other machined surfaces using an oilstone (also known as a honing bar), and is a special form of grinding. During honing, the oilstone is installed on the honing head, and the expanding mechanism expands the oilstone radially to press it against the surface of the workpiece. The honing head rot

Boring is a metal cutting method that enlarges and precision processes pre drilled holes on the workpiece through the relative motion between the boring tool on the equipment and the workpiece, in order to achieve the required dimensional accuracy and surface roughness. The boring process usually includes three stages: rough boring, semi precision