A modern core drill is a drill specifically designed to remove a cylinder of material, much like a hole saw. … Core drills are used frequently in mineral exploration where the coring may be several hundred to several thousand feet in length.

What is a coring machine used for?

​Coring is used on floors, walls and ceilings whenever there is a requirement for a hole. There are many applications, but in general it is used for utility penetrations.

How does a coring drill work?

A coring drill bit is designed with a central opening, around which the drill bit cuts the borehole. The core samples enter this hole, into a special chamber – a coring barrel, as the coring bit advances and then the sample is returned to the ship by wire. Chikyu uses a wireline coring system.