Tungaloy TNMG160412-TM T9115 CVD Coated Carbide Turning Insert for Heavy Steel Cutting - BEYOND

Tungaloy TNMG160412-TM T9115 CVD Coated Carbide Turning Insert for Heavy Steel Cutting

$66.47 USD

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Description

Tungaloy TNMG160412-TM T9115 Turning Insert

Premium CVD Grade | TM Medium-Cutting Geometry | 1.2mm Reinforced Corner Radius

What is the most durable carbide insert for high-feed steel turning?

The Tungaloy TNMG160412-TM T9115 is a heavy-duty, double-sided triangular carbide insert engineered for high-velocity steel machining. Featuring a robust 1.2mm corner radius, this model provides maximum edge strength and stability under high feed rates. It utilizes the industry-leading T9115 CVD coating, which incorporates a thick alumina layer for extreme heat resistance and a specialized TiCN layer to prevent crater wear. The -TM chipbreaker is the professional standard for medium-duty cutting, ensuring excellent chip control even in difficult carbon and alloy steels. 100% Made in Japan.

T9115 High-Speed Grade

Optimized for P15 steel applications. Its superior thermal barrier allows for significantly higher surface speeds (Vc) without compromising tool life.

TM Heavy-Medium Geometry

Designed to handle larger depths of cut and higher feed rates. The geometry effectively curls and breaks chips to prevent machine downtime.

1.2mm Edge Strength

The large 1.2mm radius is perfect for roughing and semi-finishing where edge reliability is prioritized over fine finishing on small diameters.

Decoding TNMG 160412-TM Nomenclature

T
Tri
N
0°
M
Tol.
G
Hole
16
Size
04
Thk
12
1.2 Rad
-TM
Chip

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

Feature Metric (ISO) Imperial (ANSI)
Standard Model TNMG160412-TM TNMG 333-TM
Inscribed Circle (IC) 9.525 mm 3/8"
Thickness (S) 4.76 mm 3/16"
Corner Radius (RE) 1.2 mm 3/64"

Industrial Cutting Recommendations

  • Cutting Speed (Vc): 150 - 380 m/min (Highly efficient at high RPM)
  • Feed Rate (f): 0.20 - 0.50 mm/rev (Robust 1.2mm radius support)
  • Depth of Cut (ap): 1.0 - 5.0 mm

*Optimization: For large-diameter steel shafts, maximize the cutting speed to benefit from the T9115 thermal barrier coating.*

4. Primary Applications

  • Continuous turning of large-diameter carbon steel parts.
  • Semi-roughing of alloy steel components (4140, SCM440).
  • High-feed operations requiring maximum corner strength.
  • Automotive and heavy machinery shaft production.

5. Tool Compatibility

Standard ISO TNMG 1604 interface. Pairs with MTJNR/L, WTJNR/L, or DTGNR/L tool holders. Engineered for high-rigidity CNC lathes from Mazak, Haas, Okuma, and Doosan.

7. Why Source from CNCHome-Beyond?

100% Genuine
Tungaloy Japan Stock
B2B Technical Support
Machining Expertise
Express Logistics
Global Air Shipping
Quality Verified
Factory Sealed Boxes

Professional Workshop Feedback

⭐⭐⭐⭐⭐ "Heavy Cutting Beast" - James K., USA
"The 1.2mm radius is a lifesaver for our roughing passes on 4140 steel. T9115 is so much faster than our previous grade."

⭐⭐⭐⭐⭐ "Original & Sealed" - Markus D., Germany
"Authentic Tungaloy Japan inserts. Beyond always delivers fast. The tool life is remarkably consistent across 500 parts."

⭐⭐⭐⭐ "Great Chip Control" - Hiroshi S., Japan
"Using these for high-volume automotive shafts. The -TM geometry breaks chips perfectly at high feed rates."

⭐⭐⭐⭐⭐ "Solid Partner" - Carlos M., Mexico
"Fast shipping and technical help was spot on. Our Mazak machines run smoothly with these T9115 inserts."

⭐⭐⭐⭐⭐ "Extreme Stability" - Alistair M., UK
"The large corner radius handles light interruptions better than any other 16-size insert we've tried. Best for steel roughing."

8. FAQ - Machine Shop Support

Q: Why choose a 1.2mm corner radius over 0.8mm?

A: A 1.2mm radius is significantly stronger and can handle higher feed rates. It is also more resistant to heat and chipping during heavy roughing of large components.

Q: Is T9115 suitable for interrupted cutting?

A: T9115 is a high-speed grade best for continuous cutting. For heavy interrupted cuts, the T9125 grade may offer slightly better toughness against impact.

Q: Will this insert fit my MTJNR tool holder?

A: Yes, it is a standard ISO 16-size insert. It fits all MTJNR/L 16 pockets, providing a secure and stable seat for high-productivity turning.

Tech Tip: CVD Coating Thermal Protection

The **T9115 CVD grade** uses a specialized alumina barrier to reflect heat back into the chip. For maximum efficiency, ensure your **Vc** is high enough to reach the coating's optimal performance temperature. **Tungaloy Japan** - Leading Innovation in Steel Turning.

© Technical Content by cnchome-beyond.com - Global CNC B2B 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.