ACME Threading Inserts

ACME Threading Inserts

The ACME thread (also specified in ASME/ANSI B1.5-1988) form has a 29° thread angle with a thread height half of the pitch. the apex (or crest) and valley (or root) are flat.


Our range of ACME single point threading inserts for lathe screw cutting is compatible with all major threading tool holders (with the exception of Sandvik).  Korloy threading inserts are stocked as standard in grade PC3030T, suitable for general machining on steel, stainless and cast iron.  We can also offer Vardex threading inserts from Vargus for more demanding applications (e.g. performance threading of stainless steel, titanium or aluminium).   
Size guide

  • 11ER/NR = Vardex 2ER/IR
  • 16ER/NR = Vardex 3ER/IR
  • 22ER/NR = Vardex 4ER/IR
  • 27ER/NR = Vardex 5ER/IR

Available from Cutwel on next day delivery  - buy now!