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DRILLING MACHINE

Drilling Machine

a machine for making holes with removal of chips. Drilling machines are used for drilling, boring, countersinking, reaming, and tapping. Several types are used in metalworking: vertical drilling machines, horizontal drilling machines, center-drilling machines, gang drilling machines, multiple-spindle drilling machines, and special-purpose drilling machines.

Drilling machines, also known as drill presses, are used for drilling different sized holes in a variety of materials at many different depths. It is a necessary tool in many types of industrial jobs and can perform several other functions aside from drilling.

Tapping is one of the other functions a drilling machine performs, referring to drilling holes in pipelines that are under pressure. Spotfacing refers to refining the edge of a hole to fit a bolthead or washer. Reaming makes holes more dimensional and improves the finished surface. Countersinking creates a space at the top of the hole to hold a bolt screw head in place. Counterboring makes an existing hole larger to fit the size of specific screws.

Other types of drilling machines include the upright sensitive drilling machine, upright drilling machine, radial drilling machine and special purpose drilling machine.