ZCC.CT RT16.01N-2.50GMPB YBG202 Carbide Insert – 2.5mm Pitch Metric Internal Thread
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RT16.01N-2.50GMPB YBG202 Threading Insert
Robust 2.50mm Pitch Internal Threading Solution for Steel and Stainless Steel
Product Overview
"Need a reliable internal insert that manages chip flow and vibration on 2.50mm pitch metric threads in stainless or alloy steel?"
The ZCC.CT RT16.01N-2.50GMPB YBG202 is a professional-grade internal threading insert designed for deep-hole threading and heavy cutting loads. The "GM" designation identifies its Partial Profile geometry, specifically reinforced to handle 2.50mm pitch threads while maintaining excellent chip control inside the bore.
Equipped with the YBG202 Grade, this insert features a multi-layer nc-TiAlN PVD coating. It is the premier "all-rounder" for Steel (P) and Stainless Steel (M), offering the high impact toughness required to survive the restricted chip evacuation space of internal machining.
Key Features
- Internal-Optimized YBG202 Grade: Provides exceptional edge toughness to handle the increased vibration and heat common in internal threading operations.
- Reinforced 2.50mm GM Profile: Geometry specifically ground to manage the heavy material removal of larger pitches like M18-M22, ensuring clean thread roots.
- Broad Application Range: Seamlessly transitions between Stainless Steel (M) and general Steels (P), reducing the need for constant tool changes.
- Advanced nc-TiAlN Coating: Offers high thermal stability and a low coefficient of friction, critical for preventing "chip welding" inside the workpiece.
Technical Specifications
| Parameter | Specification |
|---|---|
| Thread Standard | 60° Metric Internal (M18 / M20 / M22) |
| Pitch Range | 2.50 mm |
| Insert Size (I.C.) | 16 (9.525 mm) |
| Grade / Coating | YBG202 / nc-TiAlN PVD |
| ISO Material Groups | Steel (P), Stainless (M), Cast Iron (K) |
Fits all standard ISO internal threading boring bars. Pairs perfectly with SNR 0016 R16, SNR 0020 R16, or SNR 0025 S16.
Shop SNR Internal Threading Boring Bars →
Typical Applications
- Large-diameter internal threads for industrial nut and coupling production.
- Standard M18, M20, and M22 threads in alloy steel blocks.
- Hydraulic cylinder end caps and heavy machinery internal fittings.
- Excellent for both blind-hole and through-hole internal threading.
The Internal Advantage
The YBG202 grade provides the structural stability needed when the insert is hidden deep inside a part. For larger 2.50mm pitches, managing the chip volume is vital; the GM profile ensures that chips are broken effectively, preventing the "nesting" that often leads to insert failure in internal bores.
Verified User Performance
"Very stable inside the bore. We use these for M20 internal threads in stainless steel and the tool life is impressive. Clean chips and no vibration."
— Stefan L., Austria"The 2.50GM profile is tough. It handles the larger depth of cut perfectly on our heavy CNC lathes. Best value for internal threading."
— Marek T., Poland
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.