Rotary Tool using brushless motor

This is a Dremel like rotary tool using a brushless motor and a Electronic Speed Controller (ESC). An arduino board is programmed to control the speed of the tool in 5 steps. It can attain speed of 16,000 rpm.

Motor and ESC:
https://www.amazon.com/Hobbypower-1000kv-Brushless-Multicopter-Quadcopter/dp/B00E7LG85O/ref=sr_1_1?ie=UTF8&qid=1486392333&sr=8-1&keywords=2212+motor+combo

JT0 Drill Chuck:
https://www.amazon.com/Electric-0-3-4mm-Mounted-Connecting-3-17mm/dp/B01AW7NDOA/ref=sr_1_6?ie=U