\Slit"ting\,
a. & n. from {Slit}.
{Slitting file}. See Illust.
(i) of {File}.
{Slitting mill}.
(a) A mill where iron bars or plates are slit into narrow
    strips, as nail rods, and the like.
(b) A machine used by lapidaries for slicing stones, usually
    by means of a revolving disk, called a slicer, supplied
    with diamond powder.
{Slitting roller}, one of a pair of rollers furnished with
   ribs entering between similar ribs in the other roller,
   and cutting like shears, -- used in slitting metals.