Heavily ribbed bed with flat guideways with good damping, torsional rigidity and stiffness. The table slide moving on bed guideways provides radial feed through manually driven screw and nut.Column with suitable ribs is fixed on bed. It houses the gear box with index and differential mechanisms and axial feed change gears. The main motor with speed change gear drive is mounted on top of column. The spindle speed change is effected through speed change gears. Column also houses the machine control panel and electricals.