The Lisle 65000 replaces stripped spark plug threads on aluminum heads with 14mm spark plugs.
Installs a new 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 three insert sizes: 5/16, 7/16 and 11/16 inch. Additional inserts are available as 5 packs. Kit comes in blow-molded case for storage. Detailed instruction are included with the tool. The repair can be completed very quickly and easily.