1. Insert
Turn knurled knob (K) to fully retract the blade (B) into housing (H). Insert Nes Internal tool into the threaded hole or bore to be repaired.
2. Adjust
Turn knurled knob (K) to extend blade (B) into a thread groove on an undamaged section and tighten by hand only.
3. Rotate
Rotate the Nes Internal tool by the cross-rod, as shown, in the desired direction.