Do you offer bulk discounts or wholesale pricing for machine shops and distributors?

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.

What is your international shipping policy and typical lead time for orders?

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.

How do you guarantee the quality and tolerance precision of your CNC tools?

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.

Tungaloy TNMG160404R-S T9125 Right-Hand CVD Coated Carbide Turning Insert for Steel

Name: Tungaloy TNMG160404R-S T9125 Right-Hand CVD Coated Carbide Turning Insert for Steel
SKU: TNMG160404R-S T9125
Price: 69.92 USD
Availability: InStock

$69.92 USD

✓ In Stock & Fast Dispatch: Order processing: typically 1–3 business days after confirmation.
✓ Global Shipping: Delivery: generally 5–20 business days, depending on destination and shipping method.
✓ Guaranteed Quality: Check model, dimensions and compatibility before ordering. | Direct Factory Outlet
✓ Technical Support: Need grade selection help? Contact Engineer

💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF

Description

Description

Tungaloy TNMG160404R-S T9125 Turning Insert

Right-Hand Precision Steel Machining | T9125 CVD Technology | -S Finishing Geometry

What is the best right-hand carbide insert for precision steel finishing?

The Tungaloy TNMG160404R-S T9125 is a professional-grade, right-hand (R) oriented turning insert specifically engineered for high-performance finishing of carbon and alloy steels. Utilizing the T9125 CVD coated carbide grade, it provides an exceptional balance of wear resistance and fracture toughness, even under high-speed cutting conditions. The -S (RS) chipbreaker is specialized for light-duty finishing, ensuring excellent chip evacuation and a superior surface finish. 100% Made in Japan, this industrial tool is the benchmark for CNC shops requiring precision right-hand tools for high-speed machining cycles.

T9125 CVD Grade

A premium CVD coated grade optimized for steel. The thick coating layer provides high heat resistance, significantly extending tool life during high-speed continuous cutting.

-S (RS) Finishing Chipbreaker

Designed for light-duty finishing. Its sharp geometry reduces cutting forces and manages chips effectively at low feed rates, delivering a high-quality surface finish.

Right-Hand (R) Design

The 'R' designation specifies a right-hand cutting direction, allowing for optimized chip flow when used in standard tool holders for precise outward turning.

Decoding TNMG 160404R-S Nomenclature

T
Tri

N
0°

M
Tol.

G
D-Side

16
Size

04
Thk

04
0.4 Rad

R
RH

-S
Chip

3. Technical Specifications: Metric (ISO) vs. Imperial (ANSI)

Technical Feature	Metric (ISO)	Imperial (ANSI)
Standard Model	TNMG160404R-S	TNMG 331R-S
Inscribed Circle (IC)	9.525 mm	3/8"
Thickness (S)	4.76 mm	3/16"
Corner Radius (RE)	0.4 mm	1/64"

Recommended Cutting Parameters (Steel)

Cutting Speed (Vc): 150 - 320 m/min
Feed Rate (f): 0.05 - 0.20 mm/rev
Depth of Cut (ap): 0.2 - 1.5 mm

*Pro-Tip: Maintaining high cutting speeds with T9125 provides a superior surface luster. Ensure the setup is rigid for maximum precision.*

4. Primary Applications

Precision finishing of carbon and alloy steels (P15-P30).
Automotive components requiring tight surface tolerances.
High-precision outward turning and boring operations.
Final passes on hardened shafts and gear blanks.

5. Tool Compatibility

Fits all standard ISO/ANSI TNMG 1604 pockets. Optimized for Right-Hand (RH) tool holders such as MTJNR, WTJNR, or DTGNR series. Perfect for high-speed CNC turning centers.

7. Why Source from CNCHome-Beyond?

100% Genuine
Original Tungaloy Japan

Technical Experts
CNC Solutions Support

B2B Logistics
Global Express Shipping

Verified Stock
Factory Sealed Packaging

Machinist Feedback from Worldwide

⭐⭐⭐⭐⭐ "Superb Steel Finish" - James K., USA
"The T9125 grade is incredibly stable. Used this right-hand insert for finishing 4140 steel, and the surface finish was mirror-like."

⭐⭐⭐⭐⭐ "Authentic Japan Quality" - Dieter S., Germany
"Exactly as described. Authentic Tungaloy boxes. The -S chipbreaker manages the chips perfectly at low feed rates."

⭐⭐⭐⭐ "Great for Mass Production" - Hiroshi S., Japan
"Consistent wear life over large batches. Right-hand geometry fits our standard turret perfectly. Excellent tool life."

⭐⭐⭐⭐⭐ "Reliable B2B Partner" - Carlos M., Mexico
"Beyond always provides original stock. Fast shipping to our factory. Tungaloy's CVD coating is the best for steel."

⭐⭐⭐⭐⭐ "Exceptional Value" - Alistair M., UK
"Precise radius and very sharp cutting edge. Excellent value for original Tungaloy parts. Technical data was spot on."

8. FAQ - Machine Shop Technicals

Q: What does the 'R' in the model number stand for?

A: The 'R' stands for Right-Hand orientation. This specifies the cutting direction and chipbreaker geometry for optimal performance in RH tool holders.

Q: Can I use T9125 for stainless steel?

A: T9125 is optimized for carbon and alloy steels (ISO P). For stainless steel finishing, we recommend Tungaloy's T6100 or AH series grades for better results.

Q: What is the benefit of the -S chipbreaker?

A: The -S (or RS) chipbreaker is specifically designed for light-duty finishing. It reduces cutting resistance and prevents vibration during thin-walled or high-precision cuts.

Tech Tip: Optimizing CVD Tool Life

To maximize **T9125 grade** performance, maintain a constant cutting speed and avoid low speeds that cause built-up edge (BUE). High speeds allow the CVD coating to work at peak thermal efficiency. **Tungaloy Japan** - Excellence in precision cutting technology.

Need Help With Tungaloy Inserts?

Looking for a Tungaloy 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.

EQUIVALENT FINDER Cross-Reference to 15 Brands Find equivalent grades from Sandvik, Iscar, Kyocera, Walter, Mitsubishi and 10 more. FREE CATALOG Download PDF Catalogs 15+ insert catalogs with grade, ISO code, and tolerance data sheets. GRADE TOOL Find the Best Grade Insert grade selector for steel, stainless, cast iron, and superalloys.

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This Tungaloy insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.

Technical FAQ & Buying Guide

How do I choose the correct specification?

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.

How can I check compatibility with my existing setup?

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.

What quantity and price unit am I 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.

How should I choose cutting parameters?

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.

Are bulk discounts available?

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.

When will my order ship and arrive?

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.