Arm & Column rigidly built with reinforcement ribs to reduce distortion, to give high capacity & lasting accuracy, Electrical panel mounted at the rear of arm, Independent locking of drill head with arm, arm with sleeve and sleeve with column for easy setting, Automatic disengagement of power feed at required depth of drilling, Central lubrication of spindle head by means of a lubricating pump, Use of high grade materials and precision manufacturing guarantee long life of machine.