IS 666 : Part 2 : 1972 Specification for Jig Bushes - Part 2 : Renewable Drill Bushes
  
      | UDC 621.95 - 229.316.6 : 621.822.5 | PGD 02 | 
    |  | 
    | Reaffirmed 2018 | 
  1 Scope  
Dimensions and requirements for renewable drill bushes andassociated liner bushes and locking device. Renewable drill bushesare those intended for insertion in a liner which has been fitteddirectly into a part of the jig.