Abstract: A mechanical loin knife for removing a pork loin from the belly, ribs and fatback portion of a pork carcass is disclosed. A sustantially U-shaped knife blade 28 is supported within an elongated track 26 and adapted to pull or separate the pork loin therefrom. A pair of handles 25,27 are disposed one on each end and in a 90.degree. relationship with respect to elongated blade track 26. Blade 28 undergoes oscillating movement in response to an oscillating bar 49 connected thereto. Oscillating bar 49 is actuated by an oscillator cam 53 driven by a reduction gear output 48 leading from an overhead suspended electric motor 11. An overhead, house pressure, 180.degree. F. water supply 32 is connected through conduit 29 to blade track 26 and distributes sanitizing water via a manifold 68 housed therein to the base of blade 28. The 180.degree. F. water supply serves to maintain blade 28 clean and at an elevated temperature during use thereof.