Applicable to: quick drill, shovel drill, crown drill, internal cooling cutter
1. NSK bearing is applicable internally, and the maximum speed is 3000RPM
2. The updated sealing structure can withstand 7KGF/CM ² Water pressure of
3. The full new design of the water inlet function can feed the tool magazine (automatic tool change)

The tool holder is the connection between the machine tool and the tool, the toolholder is a key

 link affecting the concentricity and dynamic balance, it must not be treated as a general part. 

Concentricity can determine the tool in the case of a week of rotation of the cutting edge part of 

the cutting amount of uniformity; in the spindle rotation dynamic imbalance will produce periodic 

vibration.