In this case, "a drill" is a practice run.

When studying a language students often complete "exercises". A exercise that is performed repeatedly is often called a "drill". Schoolchildren and office workers usually have a "fire drill" monthly to practice safe evacuation procedures. High schools and universities often have a "drill team" that demonstrate precision maneuvers.

i think its a tool we use to make a hole in the wall or the wood ,and maybe it means the sound of this tool too.