The Collaborative International Dictionary of English v.0.48:

Pinching \Pinch"ing\, a.
   Compressing; nipping; griping; niggardly; as, pinching cold;
   a pinching parsimony.
   [1913 Webster]

   Pinching bar, a pinch bar. See Pinch, n., 4.

   Pinching nut, a check nut. See under Check, n.
      [1913 Webster]