This small hand drill can be used directly. It can be used for drilling plastic plate, thin wood. The drill can be changed. It can match drill diameter 1mm. It's with 6v 180 strong magnetic carbon brush motor. The bit diameter is 1.0mm. The power is the battery case with 4pcs AA battery(batteries is not included). Package Includes - 1 x DC 6V micro motor. 1 x brass collet (capacity 0.7-1.5mm). 1 x AA Battery case(Not include battery). 10 x 1.0mm drill bits. Other - 3.7V 22000. 4.2V 25000. input volt: DC 3.7 V-4.2V. Max AMP: 0.9A.Amezza