Drill chucks are fitted on the drilling machine spindle by means of ____

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ALP CBT 2 Fitter Previous Paper: Held on 21 Jan 2019 Shift 1
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  1. Arbor 
  2. Drift
  3. Knurled ring
  4. Pinion & key 

Answer (Detailed Solution Below)

Option 1 : Arbor 
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Detailed Solution

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Concept:

Drill chucks are held on the machine spindle by means of an arbor fitted on the drill chuck.

  

Drift: 

  • Taper shank drills are held on the machine spindle with the help of a sleeve, morse taper, and socket.
  • Drift is used to remove the socket from the machine's spindle.

26 June 1

For fixing and removing drills, the chucks are provided either with a pinion and key or a knurled ring.

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