Diameter range: between 5/16"- 13/16" 8 mm - 20 mm
Includes:
- Nes 21 RK21 60?
- Nes 22 RK22 60?
- Nes 23 RK23 60?
Features:- One tool restores Inch or Metric RH or LH threads!
- No Calibration required
- Self adjusting to any pitch and size within range
- Automatically chases good thread sections to repair the damaged parts!
- Hardened cutting blades (HSS)
- Removes rust and burrs
- NEW! Yellow nylon pads: Essential when repairing fastener threads in soft metal
Click here to watch videoNES 1007 Fastener Internal Thread Repair Kit for Automotive and Industrial Use Replaces NES1004 
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