Description
Installs a new solid steel spark plug thread insert in original thread location.
Set includes one-piece drill tap, long tap holder, short tap holder, insert installer, swedger and handle.
Includes four insert sizes: 5-16″, 7/16″, 11/16″ and 1″ (new size).
Package Weight: 1.708 kilograms
Replaces stripped spark plug threads in aluminum heads with 14mm spark plugs.

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