.Model Number 691 TYPE 2, 691 TYPE 3, 691 TYPE 4, 691 TYPE 5, 691 TYPE 6, 691 TYPE 7, 691 TYPE 8, 7800 TYPE 1, 7800 TYPE 2, 7800 TYPE 3, 7800 TYPE 4, 7800 TYPE 5, Fits Brand Porter Cable Screw, For Use With Grainger Item Number 3JF52, 6Z308, For Use With Mfr.