1、THREAD REPAIR TOOLS: Professional spark plug thread repair tools, including 10pcs M12 x 1.25 thread inserts and a M14 x 1.25 thread tap. 2、STANDARD SIZES: These repair tools have standard thread sizes, suitable for repairing spark plugs with 14mm x 1.25mm threads. 3、STAINLESS STEEL INSERTS: These threaded inserts are made of stainless steel, with galvanized treatment, corrosion resistant and durable. 4、HIGH SPEED STEEL TAP: The threaded tap is made of high speed steel, which has high hardness and high heat resistance. 5、APPLICABLE MACHINES: Efficient and labor saving, especially suitable for gasoline engines, generators, diesel engines and other machines. <div class="wang-edit-text"><p class="wang-edit-text"><p class="wang-edit-text">Item Type: Spark Plug Thread Repair ToolsThread Insert Size: M12 x 1.25 (thread diameter x pitch)Thread Insert Length: Approx. 17.5mm / 0.7inThread Insert Material: Stainless SteelThread Insert Process: GalvanizedTap Size: M14 x 1.25 (thread diameter x pitch)Tap Shank Diameter: Approx. 9mm / 0.4inTap Full Length: Approx. 90mm / 3.5inTap Blade Length: Approx. 31.8mm / 1.3inTap Material: High Speed Steel<style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 10 x M12x1.25 Inserts1 x M14x1.25&nbsp;Tap&nbsp;