131 Pcs Engine Block Restoring Damaged Thread Repair Tool Kit M5 M6 M8 M10 M12 carbon steel Professional Auto Repair Tooks Set

feature:

1. It can be used to repair damaged threads and is suitable for engines and other automotive applications.
2.31pc professional thread repair kit to restore damaged threads
3. Metal shell, strong and durable
4. Including 110 wire thread inserts
5. Made of high quality carbon steel material

specification:
Weight: 2.5kg
Applicable conditions: M5, M6, M8, M10, M12 thread
Material: carbon steel
Packing material: iron
Number of parts: 131 pieces, as shown above

note:
Drilling - clear the damaged threads with a standard 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 the thread and pitch of the tap and the bolt match.
Tapping - use the special taps for cutting the holding thread into the cleared hole (recommended to use a 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 the thread direction as the tang could break.