Amazing Dc Moter Life Hacks

I have made a very simple powerful small drilling machine with old hair trimmer which is rechargeable..
You can make multipurpose tool with this trimmer which will be coming soon..
Note- Do use more than 3.7 V lithium ion battery as the battery present in the trimmer is only 1.2V which will give less speed.
Materials Required -
1. Drill Bit
2.Old Trimmer
3.Pen
4.3.7V Lithium Ion Battery