ZCC.CT RT22.01N-4.00GMPB YBG201 Carbide Insert – 4.0mm Pitch Metric Internal Thread
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RT22.01N-4.00GMPB YBG201 Threading Insert
Robust Internal Solution for Large 4.00mm Pitch Metric & UN Threading Applications
Product Overview
"Need a stable, heavy-duty insert for cutting 4.0mm internal threads in high-tensile steels and stainless components?"
The ZCC.CT RT22.01N-4.00GMPB YBG201 is a high-strength internal threading insert designed on the Size 22 (1/2" I.C.) platform. The "GM" designation represents its specialized Partial Profile geometry optimized for large-pitch threads (up to 4.0mm), offering superior rigidity and edge toughness compared to standard size 16 inserts.
Equipped with the YBG202 Grade, this insert features a multi-layer nc-TiAlN PVD coating. It is specifically engineered to handle the intense heat and mechanical stress generated during large-pitch internal boring operations, making it ideal for Carbon Steels (P) and Stainless Steels (M).
Key Features
- Reinforced 22 Size Platform: Provides maximum stability and vibration dampening for large internal diameters, ensuring superior thread surface finish.
- Large Pitch Geometry: Specifically engineered for 4.0mm threads, providing optimal clearance and cutting-edge strength for heavy-duty applications.
- YBG201 Advanced PVD Coating: Multi-layer nc-TiAlN coating provides a thermal barrier, extending tool life in abrasive steels and gummy stainless alloys.
- Precision Ground Profile: Ensures accurate thread form and repeatability, reducing the need for constant offsets during production runs.
Technical Specifications
| Parameter | Specification |
|---|---|
| Thread Standard | Internal (N) |
| Insert Size (I.C.) | 22 (12.7 mm) |
| Maximum Pitch | 4.00 mm |
| Grade / Coating | YBG201 / nc-TiAlN PVD |
| ISO Material Groups | P (Steel), M (Stainless), K (Cast Iron) |
Pairs perfectly with all standard ISO Size 22 internal threading boring bars. Best used with SNR 0032 S22, SNR 0040 T22, or SNR 0050 U22.
Shop SNR Size 22 Internal Boring Bars →
Typical Applications
- Large internal Metric (M) and Unified (UN) threads with 4.0mm pitch.
- Machining of heavy-duty couplings, pipe fittings, and flanges.
- Aerospace and Energy sector components requiring large diameter boring.
- Production threading in stainless 304, 316, and high-alloy steels.
The YBG201 Performance
The YBG201 grade is ZCC.CT's workhorse for size 22 threading inserts. Large-pitch machining generates significant pressure; YBG201 provides the substrate toughness to prevent fracturing while the coating ensures the edge remains sharp and productive over long cycles.
Verified User Performance
"Outstanding stability for internal 4mm pitch work. The size 22 insert is much more reliable than trying to push a size 16 to its limits."
— Hans G., Germany"Clean threads in stainless steel components. YBG201 grade maintains a great edge even in deep boring applications."
— Robert M., UK
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.