Make an Impressive DIY Dremel Tool
Every handyman loves their rotary tool. After all, they are incredibly useful for making quick cuts, or even finishing out the shape on something you are working on. While rotary tools aren't that expensive, why not save a trip to the store and build your own? The video above will take you through one way you can build a useful and DIY Dremel tool in just a little bit of time.
Lithium is the best energy storage option available today but may not be for long as humanity turns to simpler options.