A grinding/polishing machine uses drive to control the motor running the grinding wheel. It is essential for the drive to accordingly perform for producing a smooth surface of good quality and required dimensions. To achieve this, our drive is exclusively designed for diamond cutting tools, which impart high grinding efficiency at low force. Using our drive, precision grinding is realized by rotating grinding wheel at high speeds. Be it a finishing operation where less material is removed or a rough operation where large material is removed, our drive drives the motor for diverse grinding operations. The drive conducts speed, position, torque and tension control. Tension control is done by controlling the output force moment of motor using either of the two modes viz. speed mode or torque mode. Besides these, our drive also possesses advantages like wide operative voltage range, maintain power factor close to one and customizable packaging options.