Aircraft Tool Supply 5523-14 Hell-Coil 14Mm Spark Plug Repair Kits
These repair kits are very popular with experimentalists and kit builders as an economical alternative to serrated inserts. They contain everything you'll need to make on-the-spot engine repairs. Includes piloted tap, and installation tool, and 30 inserts with the following reaches: 3/8" (6), 7/16"(6), 1/2"(6), 3/4"(6) and .472"(6). Note that the use of non-aviation Heli-coil inserts may not be approved for your engine. Check with the manufacturer before using. 3 lbs (1.5Kg) shipping weight.
These repair kits are very popular with experimentalists and kit builders as an economical alternative to serrated inserts. They contain everything you'll need to make on-the-spot engine repairs. Includes piloted tap, and installation tool, and 30 inserts with the following reaches: 3/8" (6), 7/16"(6), 1/2"(6), 3/4"(6) and .472"(6). Note that the use of non-aviation Heli-coil inserts may not be approved for your engine. Check with the manufacturer before using. 3 lbs (1.5Kg) shipping weight.