Tool Holding Devices in Drill Machine




Tool-Holding Devices:
Drill press spindle provides means of holding and driving cutting tool.End may be tapered or threaded for mounting drill chuck.
Most common devices are used in Drill presses:
    Drill chucks
    Drill sleeves
      Drill sockets
Drill Chucks:
Most common devices used for holding straight-shank cutting tools. Most contain three jaws that move simultaneously when outer sleeve turned. Hold straight shank of cutting tool securely.
Two common types
            Key
 Keyless


  Drill sleeves:
                       Used to adapt cutting tool shank to machine spindle if taper on tool is smaller than tapered hole in spindle
 Drill sockets:
 Used when hole in spindle of drill press to small for taper shank of drill.
 Used also as extension sockets.

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