STANDARD SIZES & EASY APPLICATION: This spark plug thread repair kit is essential for anyone dealing with stripped spark plug threads. It includes standard M12x1.25 and M14x1.25 sizes, making it compatible with most automotive spark plugs. The kit ensures a straightforward application, saving you both time and effort in engine maintenance. STAINLESS STEEL INSERTS: Crafted from high-quality stainless steel and featuring a galvanized treatment, these thread inserts offer exceptional resistance to wear and . This durability ensures long-lasting repairs, helping you maintain your vehicle's performance without frequent replacements. SUPERIOR HIGH SPEED STEEL TAP: Manufactured from high-speed steel, the included tap boasts remarkable hardness and heat resistance. This makes it an ideal choice for creating precise thread alignments in spark plug holes, ensuring reliable repairs for both professional mechanics and DIY enthusiasts. VERSATILE USE FOR VARIOUS MACHINES: Specifically designed to address the needs of gasoline engines, generators, and other machinery, this thread repair tool kit is a must-have for automotive repair shops and car enthusiasts. It provides an efficient and labor-saving solution for engine thread issues. COMPLETE THREAD REPAIR SOLUTION: This professional kit includes 10 pieces of M12x1.25 thread inserts and a M14x1.25 thread tap, offering a comprehensive solution for repairing damaged spark plug threads. It's designed to restore thread integrity and smooth engine operation. Colour:gold Material:Metal The actual product may have slight color difference or difference, which will not affect the use Package Contents: 10 * M12 x 1.25 thread inserts 1 * M14 x 1.25 thread tap Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.