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.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.