Bench Grinder

The grinding machine consists of a bed with a fixture to guide and hold the work piece, and a power-driven grinding wheel spinning at the required speed. The speed is determined by the wheel’s diameter and manufacturer’s rating. The user can control the grinding head to travel across a fixed work piece, or the work piece can be moved while the grind head stays in a fixed position. Fine control of the grinding head or tables position is possible using a vernier calibrated hand wheel, or using the features of numerical controls. From http://en.wikipedia.org/wiki/Main_Page