Tungaloy TNMG160408L-S T9125 Left-Hand CVD Coated Carbide Turning Insert for Steel - BEYOND

Tungaloy TNMG160408L-S T9125 Left-Hand CVD Coated Carbide Turning Insert for Steel

$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

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Description

Tungaloy TNMG160408L-S T9125 Turning Insert

Left-Hand High-Stability Machining | T9125 CVD Grade | RS Finishing Geometry

What is the best left-hand carbide insert for finishing alloy steel?

The Tungaloy TNMG160408L-S T9125 is a professional-grade, left-hand (L) oriented turning insert specifically engineered for the high-efficiency finishing of carbon and alloy steels. Utilizing the T9125 CVD coated carbide grade, it offers an optimal balance of wear resistance and fracture toughness, ensuring long tool life even under high-speed continuous cutting. The -S (RS) chipbreaker is specialized for light-duty finishing, providing excellent chip control and preventing surface marring. With a 0.8mm corner radius, this insert offers enhanced edge strength for stable precision. 100% Made in Japan, it is the benchmark for industrial B2B CNC operations.

T9125 CVD Coating

Features a thick Al2O3 layer for superior heat resistance. This prevents plastic deformation and crater wear during high-speed finishing of steel.

RS (-S) Chipbreaker

A sharp geometry designed for low cutting resistance. It ensures stable chip evacuation at small depths of cut, providing a high-quality surface finish.

Left-Hand Orientation

The 'L' orientation is essential for specific CNC tool paths and back-turning operations where right-hand tools cannot operate effectively.

Decoding TNMG 160408L-S Nomenclature

T
Tri
N
0°
M
Tol.
G
D-Side
16
Size
04
Thk
08
0.8 Rad
L
LH
-S
Chip

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

Technical Feature Metric (ISO) Imperial (ANSI)
Standard Model TNMG160408L-S TNMG 332L-S
Inscribed Circle (IC) 9.525 mm 3/8"
Thickness (S) 4.76 mm 3/16"
Corner Radius (RE) 0.8 mm 1/32"

Recommended Finishing Parameters

  • Cutting Speed (Vc): 150 - 320 m/min
  • Feed Rate (f): 0.10 - 0.35 mm/rev
  • Depth of Cut (ap): 0.2 - 1.5 mm

*Pro-Tip: For optimal tool life, maintain constant cutting speeds. The T9125 grade's CVD coating is designed to handle high thermal loads effectively.*

4. Primary Applications

  • Precision finishing of carbon and alloy steels.
  • Specialized CNC tool paths requiring left-hand tools.
  • Final dimensioning of shafts, valves, and mechanical components.
  • Effective in high-speed continuous turning environments.

5. Tool Compatibility

Standard ISO/ANSI pocket compatibility. Pairs optimally with MTJNL, WTJNL, or DTLNR tool holders. Suitable for high-precision CNC lathes including Haas, DMG Mori, and Mazak.

7. Why Source from CNCHome-Beyond?

100% Genuine
Tungaloy Japan Stock
Technical Experts
Dedicated Support Team
B2B Logistics
Global Express Shipping
Verified Stock
Original Sealed Packaging

Feedback from the Global Workshops

⭐⭐⭐⭐⭐ "Stable and Precise" - James K., USA
"Finding high-quality left-hand inserts can be tough. The T9125 is extremely stable for finishing steel shafts. Great tool life."

⭐⭐⭐⭐⭐ "Original Quality stock" - Markus D., Germany
"Exactly as described. Authentic Tungaloy boxes. The 0.8mm radius is strong and provides a very predictable wear pattern."

⭐⭐⭐⭐ "Great Chip Control" - Hiroshi S., Japan
"Consistent chip evacuation even at low feeds. Ideal for our finishing cycles on CNC lathes. Highly reliable brand."

⭐⭐⭐⭐⭐ "Reliable B2B Partner" - Carlos M., Mexico
"Beyond provides original stock every time. Fast shipping to our factory. The T9125 grade is my first choice for steel finishing."

⭐⭐⭐⭐⭐ "Exceptional Surface Finish" - Rajesh V., India
"The -S chipbreaker is perfect for light finishing passes. No vibrations and the surface finish is excellent. Best value for Tungaloy."

8. FAQ - Professional Machining Support

Q: What is the benefit of a Left-Hand (L) insert?

A: Left-hand inserts are designed to cut in the opposite direction. This is required for specific tool holder orientations or back-turning operations to maintain proper chip flow and tool clearance.

Q: How does T9125 compare to cermet grades?

A: While cermet provides higher gloss, the T9125 CVD coated carbide is much tougher. It is better suited for continuous cutting where higher edge strength is required to prevent chipping.

Q: Can I use this for stainless steel?

A: T9125 is primarily optimized for carbon and alloy steels (P-group). For stainless steel finishing, Tungaloy's T6100 series or AH series grades are recommended.

Tech Tip: Optimizing CVD Performance

To maximize tool life with **T9125**, avoid low cutting speeds that can lead to built-up edge (BUE). High speed allows the CVD coating to function at peak thermal efficiency. **Tungaloy Japan** - Engineering excellence for precision machining.

© Technical Data by cnchome-beyond.com - Global CNC Tool Authority

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.