KEUE CNC 3-Year Warranty MIL 4A60 L15 Carbide Small Bore Boring Cutter with Stainless Steel Precision 0.01mm for Small Aperture
This MIL 4A60 L15 reverse-hand internal threading tool adopts solid tungsten carbide substrate with premium high-silicon hard coating. Its 60° thread angle and reverse-cutting structure are tailored for micro-bore reverse threading of HRC40 steel and stainless steel on Swiss-type CNC lathes.
Precision-ground 60° thread cutting edges guarantee standard tooth profile and smooth chip removal in confined inner-hole spaces. The wear-resistant high-silicon coating effectively suppresses built-up edge, ensuring stable pitch precision and excellent surface finish during long-time continuous machining.
Its compact reverse-cutting shank perfectly adapts to limited micro-bore working space, covering 0.8–1.5 pitch range. It prolongs tool service life, cuts tool-change downtime, and significantly improves overall productivity for mass production of miniature reverse-threaded components.
