18mm x 1/2" long Heli-Coil aviation grade spark plug insert. 1 lbs (0.5Kg) shipping weight.
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This important tool is inexpensive and easy to use. Just insert the ring ends in wedge jaws and expand the ring gently and slip into groove. Also ideal for removing rings easily without damage. Handles piston rings from 3/64" to 1/4" wide.
A reliable liquid gasket sealant, dressing and coating compound that brushes on very thinly and resists temperatures of -65º to 400ºF (-54ºC to 204ºC). It will not interact with other chemicals, and dries to full strength in under 12 hours.