For repairing the glow plug mounting thread in the cylinder head. inner thread M10 x 1.0. outer thread M12 x 1.0. Kit includes.
US PRO Glow Plug Thread Reamer Set M8 M10 M12 T-Bar Ratchet Diesel Tool - 5652
US PRO Drain Plug Master Key Set 21pc Oil Sump Plug Axle Gearbox Drain Plug Tool
US PRO Drain Plug Key Set 6pc Double Ended Oil Sump Axle Gearbox Drain Plug Tool
US PRO Spark Plug Thread Repair Kit M10 X 1.00 5872
US PRO Spark Plug Thread Reapir Kit M14 X 1.25 5868