Lang Tools KS971 48-piece SAE and metric master rethreader set
Check compatibility
Lang KS971 combines SAE and metric restorers in one set. Compare the marked size list and choose a tap for an existing internal thread or a die for an existing external thread.
Questions before ordering
Which part of the set is useful for an external stud?
Select the restorer die that matches the existing stud. The set includes separate taps for internal threads and files for selected pitches. Check the manufacturer's size chart.