Arm & Column rigidly built with reinforcement ribs to reduce distortion, to give high capacity & lasting accuracyElectrical panel mounted at the rear of armIndependent locking of drill head with arm, arm with sleeve and sleeve with column for easy settingAutomatic disengagement of power feed at required depth of drillingCentral lubrication of spindle head by means of a lubricating pumpUse of high grade materials and precision manufacturing guarantee long life of machine