CT4699 Glow Plug Reamer Set - 3pc 3pc Glow Plug Reamer Set For cleaning the glow plug port aperture. Cleaning the port aperture is recommended before installation of new glow plug. M12 x 1.25 x 59mm reamer | 6.9mm Diameter M12 x 1.25 x 94mm reamer | 6.9mm Diameter
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