OYYU 08IR Threading Inserts | A60 A55 ISO Internal Threading Tools
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OYYU 08IR Internal Threading Inserts
Precision OY880A Grade | A60, A55 & ISO Metric Solutions
Product Overview
"Which threading insert is best for high-precision internal threads in small-diameter bores?"
The OYYU 08IR series is the professional answer for micro-internal threading. Featuring the high-performance OY880A grade, these inserts are engineered with a nano-PVD coating that provides exceptional heat resistance and edge sharpness. Whether you are cutting standard 60° A60, 55° A55, or specific ISO Metric pitches (1.0 to 1.75), OYYU delivers chatter-free performance and mirror-like thread finishes in both steel and stainless steel applications.
Decoding the Model: 08IR
IC Size (approx. 5mm)
Internal Threading
Right Hand Tool
PVD Nano-Grade
Key Features & Material Characteristics
- OY880A Coating: A multi-layer TiAlN PVD coating designed to prevent built-up edge (BUE) in gummy materials like 304/316 Stainless Steel.
- Ultra-Fine Substrate: High-cobalt carbide base provides the toughness needed for interrupted cuts in alloy steels.
- Precision Profile: Fully ground threading profiles ensure ISO-compliant thread accuracy and pitch consistency.
- Universal Application: Highly effective across ISO P (Steel), M (Stainless Steel), and K (Cast Iron).
Technical Specifications & Comparison
| Metric Model | Inch/Pitch Type | Cutting Speed (Vc) | No. of Passes |
|---|---|---|---|
| 08IR A60 | 60° Universal (0.5-1.5mm) | 80 - 150 m/min | 6 - 12 |
| 08IR 1.5ISO | 1.5mm Pitch Metric | 70 - 130 m/min | 8 - 14 |
| 08IR A55 | 55° Whitworth / BSW | 80 - 140 m/min | 6 - 12 |
Matching Tool Holder (Boring Bar)
Compatible with OYYU SNR/L Internal Threading Boring Bars:
View SNR0008K08 Boring Bars →Industrial Applications
- Aerospace & Medical small component threading.
- Automotive hydraulic fittings and connectors.
- General CNC lathe turning in Carbon and Alloy Steel.
- Difficult-to-machine Stainless Steel (SUS304, 316).
Why Choose OYYU?
- Consistency: High-purity carbide ensures batch-to-batch reliability.
- Global Shipping: Fast B2B logistics from our Hong Kong hub.
- Cost-Efficiency: Premium performance at a factory-direct price point.
Verified Global Reviews
"The OY880A grade is a game changer for 304 stainless. Clean threads, no chipping."
Mark T. - USA"Ottima qualità. Molto resistente su acciai legati. Prezzo eccellente."
Giuseppe R. - Italy"Very stable profile for micro-internal threading. Japanese quality level."
Hiroshi K. - Japan"Gute Standzeit in Guss und Stahl. Schnelle Lieferung."
Hans B. - GermanyTechnical FAQ
Q: Can A60 inserts replace specific ISO pitch inserts?
A: Yes, A60 is a partial profile insert. It can cut any pitch between 0.5mm and 1.5mm, though it won't deburr the thread crest like a full profile ISO insert.
Q: What is the recommended boring bar diameter for 08IR?
A: Usually, a 7mm or 8mm minimum bore diameter is required for 08 size inserts (e.g., SNR0008K08 bar).
Q: Is OY880A better for dry or wet cutting?
A: For internal threading, coolant is highly recommended to help flush chips out of the bore and prevent re-cutting.
Expert Pro-Tip: Grade Selection
OY880A is a versatile PVD grade. For maximum performance in extremely hard materials (>HRC45), ensure lower cutting speeds to maintain the integrity of the nano-coating. Always verify your boring bar center height to ensure perfect thread geometry.