How To Troubleshoot & Refurbish a DEAD $10 Cordless Drill Back to Working Condition!

I bought a tool on the street for ten bucks. It was completely untested and the vendor initially refused to sell it to me because it "didn't work!".
After some convincing (I really should video the convincing some day, there are bunches of people who refuse to sell me broken things because they don't want to RIP ME OFF...) she sold it to me, somewhat ashamedly.
Here's how I brought a drill back to life, by cleaning it, troubleshooting it and buying another tool with a compatible battery.

In a future video I will show how to repair the problem (faulty power pack) by testing and changing out its defective 18650 Lithium Ion batteries.