This 131pcs thread repair kit is the perfect solution to a damaged or stripped tapped hole
It's suitable for M5, M6, M8, M10 and M12, the kit creates a stronger internal thread in soft metals and protects tapped threads against wear and damage.
This re-thread tool full set include: insert installations, wire thread inserts, twist drill bits, thread taps, lug breaking tools
All tools were packed in a convenient steel carrying case, ease and fast in collecting and placing the tools.
Coarse Thread Inserts Coil Size: M5x0.8x6.7 mm, M6x1.0x8.0 mm, M8x1.25x10.8 mm, M10x1.5x13.5 mm, M12x1.75x16.3 mm
DRILLING: Clear the damaged thread with a Standard Drill. Up to M6 the kits include the correct drill. To repair a spark plug thread no Pre-drilling is necessary if using the special Spark Plug Tap. Please pay attention that for Fluteless Taps bigger holes are required. CHECK: Check that thread and pitch of the tap and the bolt match. TAPPING: Use the special V-Coil-Taps for cutting the holding thread into the cleared hole. It is recommended to use suitable cutting oil. INSTALL THE INSERT: Place insert on installation Tool and position the adjustable ring so that the insert tang is centered in the tang slot. Wind the insert in with a light downward pressure until a half turn below the surface. Don't work against thread direction as the tang could break. TANG REMOVAL: After finishing lift the installation tool and use the tang break tool to remove the tang. For bigger sizes and spark plug tags use long nose pliers to remove the tang. Due to the narrow and exact tolerances the new thread normally is stronger than the original one.