You can learn how to easily sharpen drill bits using homemade drill bit sharpening jig from dull bit to sharp drill bit. This jig is very simple to make and sharpen various sizes of drill bits in few minutes. Here bench grinder is used to sharpen drill bits. you can setup angel for main base for harpen various sizes. A great addition to any bench grinder that does not already have one and costs much less than buying one.
this is really help me for working and I am very pleased with the results and would recommend making one yourself.