Features:Quantity and Size: 15Pcs M10x1.0x13.5Suitable for engine repair and other automotive applications， for restoring the damaged threadsIdeal for restoring damaged threads， stripped internal threads and creates a stronger internal thread in soft metalsPackage Included:1x Twist Drill Bit1 x Break Pin Tool1 x Installation Tool1 x Hex Key1 x Thread Tap10 x Thread Inserts1 x English Instructions1 x Hard Case