1. Portable drill grinder, accurate and rapid, easy to operate, with no skill requirement to grind.

2. Economic and saving cost, improve efficiency.

3. One piece grinder wheel can complete all procedure, accurate angle and long service life.

4. The electrically controlled and powerful DC motor, stable frequency, strong horsepower and long service life.

5. Especially for the point angle, lip relief angle of twist drill, has good grinding effect.

6. It can be effective co-ordination with the drilling material and speed, can control the quality and accuracy of the work piece, extend the life of the drill bit.