ZCC.CT RT16.01N-1.25GMPB YBG205 Carbide Insert – 1.25mm Pitch Metric Internal Thread
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RT16.01N-1.25GMPB YBG205 ZCC.CT Threading Insert
Precision Metric Threading Specialist for Stainless Steel & Superalloys
Product Overview
"Which insert ensures the cleanest 1.25mm pitch threads in gummy stainless steel without chip nesting?"
The RT16.01N-1.25GMPB YBG205 is a high-precision external threading insert. The GMPB chipbreaker is the standout feature here—it is engineered with a unique geometry that breaks long, stringy chips common in stainless steel and low-carbon steels. Paired with the YBG205 Grade (a nano-TiAlN PVD coating), this tool offers extreme heat resistance and prevents built-up edge (BUE), ensuring your threads meet strict tolerance and surface finish requirements.
Model Code Interpretation
External Threading
Size (IC 9.525mm)
Standard Thickness
Pitch (1.25mm)
General Purpose
Chipbreaker Type
Stainless Grade
Product Core Advantages
- GMPB Precision Chip Control: Eliminates long bird-nesting chips, protecting the workpiece surface.
- Nano-PVD YBG205 Grade: Optimized for stainless steel and heat-resistant alloys (Inconel, Titanium).
- Full Profile Design: Ensures a complete thread form (crest and root) with perfect 60° angle.
- High Surface Integrity: Reduces cutting force and friction for mirror-like thread flanks.
Application Scenarios
- Precision metric threading in 304, 316, and Duplex Stainless Steel.
- Aerospace and medical component manufacturing.
- High-volume production where chip management is critical for automation.
- External threading on CNC lathes and turning centers.
Technical Specifications & Thread Data
| Metric Model | Inch Equivalent | Pitch (mm) | Thread Passes (Rec.) |
|---|---|---|---|
| RT16.01N-1.25GMPB | 16ER 1.25 ISO | 1.25 mm | 6 - 10 Passes |
*Recommended Vc: 80 - 150 m/min for Stainless Steel.
Compatibility: Matching Tool Holders
Standard 16ER size (RT16). Precision fit for ZCC.CT and all standard ISO threading holders:
ZCC Threading Grade Logic
- YBG202: General-purpose PVD for most steels.
- YBG205 (This Grade): Specialized for Stainless & High-Temp Alloys. High wear resistance.
- YBM253: CVD grade for heavy-duty threading in tough materials.
Why Choose Us?
- ✅ Technical Director Audited: Correct parameters for every thread pitch.
- ✅ 100% Genuine: Factory sealed boxes with QR verification codes.
- ✅ Stock Reliability: We maintain inventory for all standard metric and inch pitches.
Verified Customer Feedback
"The GMPB chipbreaker is a lifesaver for 316 stainless. No more stopping the machine to clear long ribbons of chips."
Mark T. - USA"Exzellente Gewindequalität. YBG205 hält bei Edelstahl viel länger als Standard-PVD."
Bernd S. - Germany"Filettatura perfetta. La superficie è lucida e il passo è precisissimo. Ottimo per lotti industriali."
Alessandro R. - Italy"非常に良いチップブレーカーです。ステンレスの加工でも切り屑が細かく砕けます。"
Kenichi O. - Japan"Fast delivery and original ZCC. The performance on 304 stainless is impressive."
George P. - UKThreading FAQ
Yes. RT16.01N is ZCC.CT's designation for the standard 16ER external threading insert. It fits all standard 16ER/RT16 tool holders.
No. This is an External threading insert. For internal threads, you would need the NR (Internal) series (e.g., RT16.01NR).
For 1.25mm pitch in stainless steel, we recommend 8 to 10 passes to prevent edge chipping and ensure a high-quality finish.
Threading Tip:
When threading stainless steel with the GMPB chipbreaker, ensure you use a Flank Infeed (modified flank infeed) method rather than a radial infeed. This reduces friction on both sides of the insert and fully utilizes the chipbreaking geometry for a smoother operation.
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.