Transcription of DRILLING MACHINES GENERAL INFORMATION
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DRILLING MACHINES GENERAL INFORMATION
TC 9-524. Chapter 4. DRILLING MACHINES . GENERAL INFORMATION . PURPOSE USES. This chapter contains basic INFORMATION pertaining to DRILLING A DRILLING machine, called a drill press, is used to cut holes MACHINES . A DRILLING machine comes in many shapes and into or through metal, wood, or other materials (Figure 4-1). sizes, from small hand-held power drills to bench mounted DRILLING MACHINES use a DRILLING tool that has cutting edges at and finally floor-mounted models. They can perform its point. This cutting tool is held in the drill press by a chuck operations other than DRILLING , such as countersinking, or Morse taper and is rotated and fed into the work at variable counterboring, reaming, and tapping large or small holes.
drill chucks, while tapered shank drills are usually for the larger drills that need more strength which is provided by the taper socket chucks. TC 9-524 Remove all chuck keys and wrenches before operating. Always wear eye protection while operating any drilling machines. EQUIPMENT Common twist drill sizes range from 0.0135 (wire gage size
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