My Dewalt DCD780 20 V 1/2 inch Cordless Drill / Driver
Here is a link to one of the most used tools in my shop. It is the cordless drill / driver by Dewalt Model DCD780. It is a 20 volt lithium ion battery which means it will last relatively a long time. It has lots of power for just about anything I have thrown at it in my wood shop. I use this for drilling pocket holes, pre drill screws as well as driving screws. It has 2 speeds and an adjustable chuck. The battery takes about an hour to charge. The battery also works with my other Dewalt impact driver.
I am not recommending you go out and buy this tool. I am give you my feedback on the tools I use in the shop. If you click on the picture or the link it will take you to the current version of the tool on Amazon.