Manu engineering works has introduced drill grinders, model dg 40 [cap: 3 mm to 40 mm] and model dg 50 [cap: 5 mm to 50 mm]. These are useful for precision grinding and sharpening of all shank type of cutting tools like std drills, slot drills, core drills, counter shank drills, multi-step drills, and taps used in machine shops. It can quickly grind conventional points completely in one operation giving repeatable results. The precision 6-jaw, self centering chuck takes drills from 3 mm to 40 mm dia in model dg 40 and 5 mm to 50 mm dia in model dg 50. The main chuck spindle comprises a frictionless linear bearings having spring loaded precision imported roller thrust bearings on both sides for smooth operation of the work head for long period. As the drills rotates, both the lips are ground in one operation uniformly giving the correct cutting angle and precision point. The work-head is fixed on a robust compound slide. The specially designed electric motor is of 1 hp, 3-phase, 440 v ac. This motor has three heavy duty ball bearings with dynamically balanced rotor for smooth and vibration-free grinding finish and long life. The point angle is variable from 40 to 180 by locking rotating work-head at the required angle. The clearance angle is changeable by adjusting the back plate of chuck through the control arm, which automatically changes the cam effect. For web thinning, a separate disc wheel is provided behind the standard wheel for point thinning immediately after the point grinding without removing drill, eliminating the flut error milling resulting in an accurate ground drill point. The machine is offered with a cam suitable for rh drills. Extra accessories like special cam for 180 flat bottom drill grinding, cam for grinding pilot drill of any angle, 4 flut tap and core drill grinding cam are also available. Machine lamp and coolant pump with tank can be supplied on request at an extra cost, if ordered with the machine.