expanding bit

1 definition found

expanding bit - Collaborative International Dictionary of English v.0.48 :

  Expanding \Ex*pand"ing\, a.
     That expands, or may be expanded; extending; spreading;
     enlarging.
     [1913 Webster]
  
     Expanding bit, Expanding drill (Mech.), a bit or drill
        made adjustable for holes of various sizes; one which can
        be expanded in diameter while boring.
  
     Expanding pulley (Mach.), a pulley so made, as in sections,
        that its diameter can be increased or diminished.
        [1913 Webster]