• Definition

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  • Classification

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  • Geometry

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  • Combined Drills and Countersinks

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  • Definitions of Process Parameters

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    A. Twist Drills

    I Definition:


     


     

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    II. General Classifications
     

    B. Classification Based on Methods of Holding or Driving

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    III. Nomenclature of Twist Drills and Other Terms Relating to Drilling
     

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    B. Combined Drills and Countersinks
     


              III. Nomenclature of Combined Drills and Countersinks
     



     

    Process Parameters:
     
     


     
     
     

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    Drill Press:

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    REFERENCE: Above shown figures and many other definitions are referred from Metal Cutting Tool Handbook published by the Metal Cutting Tool institute , N.Y

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