Screw extractor
    Sizes Capacity range
    Metric Inch
    # 1 M3 - M6 1/8" - 1/4"
    # 2 M6 - M8 1/4" - 5/16"
    # 3 M8 - M11 5/16" - 7/16"
    # 4 M11 - M14 7/16" - 9/16"
    # 5 M14 - M18      9/16" - 3/4"
    # 6 M18 - M24       3/4" - 1"
    # 7 M24 - M30         1" - 1.13/16"
    # 8 M30 - M40 13/16" - 1.37/64"
    Screw extrator in set 
    Item Sizes range
    pcs/set
    5pcs/set 1# -  5#
    6pcs/set 1# -  6#
    8pcs/set 1# -  8#