Drilling machines, or drill presses, are primarily used to drill or enlarge a cylindrical hole in a workpiece or part. The chief operation performed on the drill press is drilling, but other possible operations include: reaming, countersinking, counterboring, and tapping.
source/image: Mr. NK
This Homemade mini drill press is constructed from wood and aluminum plate and featuring a 1″ steel column. Powered by a variable speed DC motor and featuring an 1/8″ It works with 12v DC. It can drill PCB as well as wood. It is very cheap and made with scrap material except motor.
Once you build this fixture you’ll love its adjustable fence for drilling equally centered holes and the stop block that lets you make repeatable drilling operations in conjunction with the fence.
Best yet, this jig is a project you can work on in your spare time over a couple days and complete for less than $50. The most expensive items are the T-track and the hold-downs.The head contains the motor and variable speed mechanism used to drive the spindle. The spindle is housed within the quill, which can be moved up or down by automatic feed.