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
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.