Abstract: A cutting edge system for cutting leather includes a replaceable beveled cutting edge with a stabilizing ridged side wall translating downward and forward pressure through hide slicing motions, a wrist accommodating set-off cutting edge holder which reduces movement of the cutting edge in relating to the holder, enhancing translation of downward pressure to forward hide slicing motion, biasing the knife point of balance from the edge to the holder, and a thumb configured control and guide support integral with said holder. A cutting edge system can further include first and second shank halves seating said cutting edge and forming a shank, first and second holder halves sandwiching said shank and said cutting edge, and one or more pins and one or more rivets securing said holder, shank, and cutting edge as one unit. A cutting edge system can further include a butt.