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.
Need Help With ZCC.CT Inserts?
Looking for a ZCC.CT equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This ZCC.CT insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.