12pcs M4x0.7 Thread Repair Kit Self Tapping Thread Insert Twist Drill Installation Tool

These wire inserts have self-tapping ability, so the base metal does not need to be drained beforehand. Self-tapping wire inserts have a maintenance effect on damaged wires. Threaded repair makes it possible to continue using the same screws. Self-adhesive wire inserts have strong resistance to vibration and prevent loosening. Easier, more convenient and faster than ordinary steel wire inserts.

Price: 30.00 from Bol.com