Kit of 33 pieces for thread repair in spark plug

Complete box including all the tools used to work on all the spark plugs in the car fleet,
with 6 repair screw taps M8-M10 (x2)-M12 (x2)-M14.
3 spark plug recess blanking plugs with extension and offset handle.
5 inserts of each dimension: M8x100 - M10x100 - M10x125 and M12x125.
2 tools for installing identical threads in inserts M8x1.0-M10x1.0-M10x1.25-M12x1.