2.      Serves as two types of drilling that allows loading in a annular Cutter or change with drill chuck for loading twist Drill or hole Saw.

3.      Bearing Bracket aligns cutters precisely, which increases cutter and motor life. Also utilized with roller bearing for increase main shaft stability and avoid motor and shaft sway easily.

4.      The roller bearing design that lowers down damage. The cutter no needs to change many times and save the cost also increase cutter life.

5.      Designed with double coil magnetic base when has power the in front of coil will start. This design is for adjust to point when any on coil burning that still keeps another and avoid danger. It's high safety.

6.      Designed with electronic switch that can adjust an electric current and keep than traditional switc.

7.      Light weight, only 14k