This is an Original Snap-On Repair Kit to partially or fully rebuild your 3/8" Ratchet Drive

It is designed for 30 tooth head and no others

The compatibility is as follows

F830
    F831
    F832
    F835
    F836
    FL830
    FK830
    FL836

  F841

    F851
    F852
    FK831
    FK835
    GF830
    GF831
    GFL830
    QC2FR75
    QC2R100
    QC2R1000
    QC2RM1000
    QC2RN50
    QC2RN100
    QT2FR100