MIL 4A55 L22 Anti-55° KEUE CNC Carbide Boring Tool Stainless Steel Product Category Boring Tools
This MIL 4A55 L22 reverse-hand small-bore internal threading tool adopts solid tungsten carbide substrate with premium high-silicon hard coating. Its 55° thread angle and reverse cutting structure are specially engineered for precision reverse threading of stainless steel on Swiss-type CNC lathes.
Precision-ground thread cutting edges guarantee standard 55° tooth profiles and smooth chip evacuation in confined inner-hole spaces. The wear-resistant high-silicon coating effectively suppresses built-up edge, ensuring stable pitch accuracy and excellent surface finish for long-time continuous machining.
Its compact reverse-cutting shank perfectly adapts to the limited working space of tiny inner bores. Available in multiple specifications, it reduces tool-change downtime, extends service life and significantly improves overall productivity for mass production of miniature reverse-threaded parts.
