The SKS Tools automotive brake tool set includes an M14 spark plug tap and thread repair inserts. The tap has a 21 mm hex head.
- Type: Spark plug thread repair kit
- Thread: M14 x 1.25 mm
- Tap: 1 for M14 spark plugs, with a 21 mm hex head
- Repair inserts: 4, measuring 9.7 mm, 11 mm, 13 mm and 19 mm