ZCC.CT RT16.01N-G55P YBG201 Carbide Insert – 55° BSP Internal Thread 1.75-3.0mm
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RT16.01N-G55P YBG201 Threading Insert
Universal 55° Internal Threading Solution for Whitworth, BSW, and BSPP Profiles
Product Overview
"Need a versatile internal insert that handles various 55° Whitworth pitches in both steel and stainless steel without swapping tools constantly?"
The ZCC.CT RT16.01N-G55P YBG201 is a high-precision internal threading insert featuring a 55° Partial Profile (G55). This geometry is designed for maximum flexibility, allowing a single insert to machine a broad range of 55-degree thread pitches used in British Standard Whitworth (BSW) and British Standard Pipe (BSPP) applications.
Equipped with the YBG201 Grade, this insert utilizes a specialized PVD TiAlN coating on a balanced carbide substrate. It provides the thermal stability and edge toughness required for internal boring and threading in ISO P (Steel) and ISO M (Stainless Steel) materials.
Key Features
- YBG201 Multi-Purpose Grade: A reliable PVD coating that provides high wear resistance and prevents material welding, essential for internal stainless steel threading.
- Partial Profile G55 Versatility: Machining multiple 55° Whitworth pitches with a single insert reduces tool changeover time and inventory complexity.
- Optimized Internal Geometry: Precision-engineered for boring bar applications, ensuring clean chip flow out of internal holes.
- Excellent Thermal Stability: The PVD coating allows for higher cutting speeds while maintaining edge sharpness in high-temperature alloy steels.
Technical Specifications
| Parameter | Specification |
|---|---|
| Thread Application | Internal (N) |
| Thread Angle | 55° (Whitworth / BSPP) |
| Insert Size (I.C.) | 16 (9.525 mm) |
| Pitch Range Range | 0.5 - 3.0 mm / 48 - 8 TPI |
| Grade / Coating | YBG201 / PVD TiAlN |
Pairs with standard ISO internal threading boring bars. Recommended for SNR 0016 R16, SNR 0020 R16, or SNR 0025 S16.
Shop SNR Internal Threading Boring Bars →
Typical Applications
- Internal 55° Whitworth (BSW) and Gas (BSPP) threads.
- Machining internal couplings and valve bodies.
- Excellent for Carbon Steel, Low-Alloy Steel, and Stainless Steels.
- Ideal for small to medium batch production requiring versatility.
Grade Benefit
The YBG201 grade is ZCC.CT's most popular choice for general workshop use. It balances toughness for interrupted cuts with enough hardness to resist wear at standard cutting speeds, providing consistent performance in various steel grades.
Verified User Performance
"Very reliable insert for our internal Whitworth threads. The G55 partial profile makes it a great multi-tasker."
— Richard B., Australia"Clean threads on stainless components. YBG201 grade holds up well against heat. Definitely buying again."
— Hans G., Germany
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.