This is a simplest way to make a powerful drill machine at home. you can use 0.6mm to upto 5mm drill bits in this drill. This machine is most cheaper and reliable as compare to other DIY drill machines. Enjoy! About Material: I bought DC motor =2.00$ and drill chuck= 1.5$ from my local market. you can also buy from online store, but a bit costly. http://www.banggood.com/0_3-4mm-Drill-Chuck-with-Wrench-and-3_1mm-Bushing-Connecting-Shaft-p-1043551.html Like Us On Facebook: https://www.facebook.com/easyhomemadeprojects SUBSCRIBE HERE: http://www.youtube.com/c/EasyHomeMadeProjects?sub_confirmation=1