Feature●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 kilogramsDescription
Replaces stripped spark plug threads in aluminum heads with 14mm spark plugs.