Tungaloy TNMG160404-SM T6130 CVD Coated Carbide Turning Insert for Stainless Steel

$65.32 USD

Tungaloy TNMG160404-SM T6130 Turning Insert Premium CVD Grade | SM Stainless Finishing Geometry | Industrial Quality from Japan What is the best carbide grade for high-speed stainless steel turning? The...

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Tungaloy TNMG160404-SM AH725 PVD Coated Carbide Turning Insert for Stainless Steel

$63.02 USD

Tungaloy TNMG160404-SM AH725 Turning Insert High-Performance PVD Coated Grade | SM Finishing Geometry | Precision Stainless Machining What is the best carbide grade for machining stainless steel and sticky materials?...

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Tungaloy TNMG160404-TM AH725 PVD Coated Carbide Turning Insert for Steel and Stainless

$65.32 USD

Tungaloy TNMG160404-TM AH725 Turning Insert High-Performance PVD Grade | TM Medium-Cutting Geometry | Made in Japan Which insert is best for general purpose steel and stainless turning? The Tungaloy TNMG160404-TM...

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Tungaloy TNMG160404-TM T9115 CVD Coated Carbide Turning Insert for Steel Machining

$66.47 USD

Tungaloy TNMG160404-TM T9115 Turning Insert High-Speed CVD Grade | TM Medium-Cutting Chipbreaker | Premium Steel Machining What is the best carbide insert for high-speed steel turning? The Tungaloy TNMG160404-TM T9115...

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Tungaloy TNMG160404-TM T9125 CVD Coated Carbide Turning Insert for Steel Machining

$74.52 USD

Tungaloy TNMG160404-TM T9125 Turning Insert Toughened CVD Grade | TM Medium-Cutting Geometry | Industrial Excellence for Steel Which carbide insert is best for interrupted steel turning? The Tungaloy TNMG160404-TM T9125...

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Tungaloy TNGG160408R-P TH10 Uncoated Carbide Insert for Aluminum Turning

$68.77 USD

Tungaloy TNGG160408R-P TH10 Turning Insert Uncoated Micrograin TH10 | Precision -P Chipbreaker | 0.8mm Right-Hand Radius What is the best uncoated insert for high-gloss aluminum finishing? The Tungaloy TNGG160408R-P TH10...

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Tungaloy TNGG160404R-P TH10 Uncoated Carbide Turning Insert for Aluminum

$68.77 USD

Tungaloy TNGG160404R-P TH10 Turning Insert Uncoated Micrograin TH10 | Precision -P Chipbreaker | 0.4mm Right-Hand Radius How do I achieve a mirror finish on aluminum and non-ferrous parts? The Tungaloy...

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Tungaloy TNGG160404L-P TH10 Uncoated Carbide Finishing Insert for Non-Ferrous Metals

$68.77 USD

Tungaloy TNGG160404L-P TH10 Turning Insert Uncoated Micrograin TH10 | Precision -P Chipbreaker | 0.4mm Left-Hand Radius What is the best uncoated carbide insert for aluminum and brass finishing? The Tungaloy...

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Tungaloy TNGG160404R-P GH330 PVD Coated Carbide Finishing Insert for Steel

$86.01 USD

Tungaloy TNGG160404R-P GH330 Turning Insert PVD Coated Grade GH330 | Precision -P Chipbreaker | 0.4mm Right-Hand Radius What is the best PVD grade for high-speed finishing on alloy steel? The...

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Tungaloy TNGG160402R-P GH330 PVD Coated Carbide Finishing Turning Insert

$86.01 USD

Tungaloy TNGG160402R-P GH330 Turning Insert PVD Coated Grade GH330 | Precision -P Chipbreaker | 0.2mm Right-Hand Radius What is the best PVD grade for high-speed finishing of alloy steel? The...

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Tungaloy TNGG160408L-P GH110 PVD Coated Carbide Finishing Insert

$86.01 USD

Tungaloy TNGG160408L-P GH110 Turning Insert PVD Coated GH110 Grade | Precision -P Chipbreaker | 0.8mm Left-Hand Radius What is the most reliable PVD coated insert for high-wear steel finishing? The...

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Tungaloy TNGG160404L-P GH110 PVD Coated Carbide Finishing Insert

$86.01 USD

Tungaloy TNGG160404L-P GH110 Turning Insert PVD Coated GH110 Grade | Precision -P Chipbreaker | 0.4mm Left-Hand Radius How can I improve tool life during high-precision steel finishing? The Tungaloy TNGG160404L-P...

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Tungaloy TNGG160402R-P GH110 PVD Coated Carbide Finishing Insert for Steel Turning

$86.01 USD

Tungaloy TNGG160402R-P GH110 Turning Insert PVD Coated Grade GH110 | Precision -P Chipbreaker | 0.2mm Right-Hand Radius What is the best PVD coated insert for high-precision finishing on steel? The...

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Tungaloy TNGG160402L-P GH110 PVD Coated Carbide Finishing Insert for Steel

$86.01 USD

Tungaloy TNGG160402L-P GH110 Turning Insert PVD Coated Grade GH110 | Precision -P Chipbreaker | 0.2mm Left-Hand Radius What is the best PVD coated insert for high-precision finishing on hardened steel?...

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Tungaloy TNMG160404-TS NS9530 Cermet Turning Insert for High-Surface Finish Steel

$40.03 USD

Tungaloy TNMG160404-TS NS9530 Cermet Insert High-Precision Cermet Grade | TS Finishing Geometry | Mirror Surface Quality How do I achieve a mirror finish on steel turning parts? The Tungaloy TNMG160404-TS...

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Tungaloy TNMG160404-37 NS9530 Cermet Turning Insert for High-Speed Steel Finishing

$42.33 USD

Tungaloy TNMG160404-37 NS9530 Turning Insert High-Speed Surface Gloss | -37 Precision Chipbreaker | NS9530 Cermet Technology How do I achieve a mirror-like surface on steel parts efficiently? The Tungaloy TNMG160404-37...

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Tungaloy TNMG160404-11 NS9530 Cermet Turning Insert for Precision Steel Finishing

$43.48 USD

Tungaloy TNMG160404-11 NS9530 Turning Insert High-Speed Mirror Finishing | -11 Chipbreaker | Premium NS9530 Cermet How do I get a mirror surface finish on steel at high cutting speeds? The...

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Tungaloy TNMG160402-11 NS9530 Cermet Turning Insert for Steel Finishing

$43.48 USD

Tungaloy TNMG160402-11 NS9530 Turning Insert Ultra-Precision Finishing | NS9530 Cermet Grade | 0.2mm Corner Radius What is the best cermet insert for high-gloss steel finishing? The Tungaloy TNMG160402-11 NS9530 is...

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Tungaloy TNGG160408R-W NS9530 Cermet Turning Insert with Wiper Technology

$51.53 USD

Tungaloy TNGG160408R-W NS9530 Wiper Insert High-Speed Finishing | -W Wiper Geometry | NS9530 Premium Cermet How can I double my feed rate while maintaining a mirror surface finish? The Tungaloy...

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Tungaloy TNGG160408R-P NS9530 Cermet Turning Insert for High-Precision Steel Finishing

$51.53 USD

Tungaloy TNGG160408R-P NS9530 Turning Insert High-Performance Cermet Grade NS9530 | Precision -P Chipbreaker | 0.8mm Right-Hand Radius What is the best cermet insert for high-gloss finishing on alloy steel? The...

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Tungaloy TNGG160408R-C NS9530 Right-Hand Cermet Turning Insert for Mirror Finish

$51.53 USD

Tungaloy TNGG160408R-C NS9530 Turning Insert Precision Cermet Grade | NS9530 Gloss Finish | 0.8mm Right-Hand Radius What is the best cermet insert for high-gloss finishing and stable edge strength? The...

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Tungaloy TNGG160408L-W NS9530 Cermet Turning Insert with Wiper Technology

$51.53 USD

Tungaloy TNGG160408L-W NS9530 Wiper Insert Mirror Finishing | -W Wiper Geometry | NS9530 Premium Cermet How to achieve mirror surface finishes at double the feed rate? The Tungaloy TNGG160408L-W NS9530...

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Tungaloy TNGG160408L-C NS9530 Cermet Turning Insert for High-Surface Finish Steel

$51.53 USD

Tungaloy TNGG160408L-C NS9530 Turning Insert High-Precision Cermet Grade | NS9530 Mirror Finish | 0.8mm Left-Hand Radius What is the best cermet insert for stable finishing and long tool life? The...

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Tungaloy TNGG160404R-W NS9530 Cermet Turning Insert with Wiper Technology

$51.53 USD

Tungaloy TNGG160404R-W NS9530 Turning Insert High-Speed Steel Finishing | -W Wiper Edge | Premium NS9530 Cermet What is the best way to double feed rates while maintaining a mirror finish?...

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Tungaloy TNGG160404R-P NS9530 Cermet Turning Insert for High-Speed Steel Finishing

$51.53 USD

Tungaloy TNGG160404R-P NS9530 Turning Insert High-Performance Cermet NS9530 | Precision -P Chipbreaker | 0.4mm Right-Hand Radius How can I get a mirror finish on carbon steel parts without grinding? The...

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Tungaloy TNGG160404R-C NS9530 Right-Hand Cermet Turning Insert for Steel Finishing

$51.53 USD

Tungaloy TNGG160404R-C NS9530 Turning Insert Precision Cermet Grade | NS9530 Mirror Finish | 0.4mm Right-Hand Radius Which cermet insert is best for achieving a mirror finish on steel parts? The...

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Tungaloy TNGG160404L-W NS9530 Cermet Wiper Insert for Steel Finishing

$51.53 USD

Tungaloy TNGG160404L-W NS9530 Wiper Insert High-Speed Finishing | -W Wiper Geometry | NS9530 Premium Cermet How can I double my feed rate while maintaining a mirror surface finish? The Tungaloy...

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Tungaloy TNGG160404L-P NS9530 Cermet Turning Insert for Steel Finishing

$51.53 USD

Tungaloy TNGG160404L-P NS9530 Turning Insert Premium Cermet Grade NS9530 | Precision -P Chipbreaker | 0.4mm Left-Hand Radius What is the best cermet insert for high-speed steel finishing? The Tungaloy TNGG160404L-P...

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Tungaloy TNGG160404L-C NS9530 Cermet Turning Insert for High-Precision Steel Finishing

$51.53 USD

Tungaloy TNGG160404L-C NS9530 Turning Insert High-Precision Cermet Grade | NS9530 Mirror Finish | 0.4mm Left-Hand Radius What is the most effective cermet grade for stable finishing in steel? The Tungaloy...

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Tungaloy TNGG160402R-P NS9530 Cermet Finishing Insert for Steel

$51.53 USD

Tungaloy TNGG160402R-P NS9530 Turning Insert High-Performance Cermet Grade NS9530 | Precision -P Chipbreaker | 0.2mm Right-Hand Radius What is the best cermet grade for achieving a mirror finish on steel?...

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Tungaloy TNGG160402R-C NS9530 Cermet Turning Insert for High-Gloss Steel Finishing

$51.53 USD

Tungaloy TNGG160402R-C NS9530 Turning Insert Precision Cermet Grade | NS9530 Mirror Finish | 0.2mm Right-Hand Radius What is the best cermet insert for high-gloss finishing on steel? The Tungaloy TNGG160402R-C...

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Tungaloy TNGG160402L-P NS9530 Cermet Turning Insert for High Gloss Steel Finishing

$51.53 USD

Tungaloy TNGG160402L-P NS9530 Turning Insert High-Performance Cermet Grade NS9530 | Precision -P Chipbreaker | 0.2mm Left-Hand Radius What is the best cermet insert for high-gloss finishing on carbon steel? The...

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Tungaloy TNGG160402L-C NS9530 Cermet Turning Insert for High-Precision Steel Finishing

$52.40 USD

Tungaloy TNGG160402L-C NS9530 Turning Insert High-Precision Cermet Grade | NS9530 Mirror Finish | 0.2mm Precision Radius What is the best cermet insert for ultra-fine steel finishing? The Tungaloy TNGG160402L-C NS9530...

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Tungaloy TNMG160404 / TNMG160408 T5115 CVD Coated Carbide Turning Inserts for Cast Iron

$66.47 USD

Tungaloy TNMG160404 / TNMG160408 T5115 Turning Inserts High-Stability Cast Iron Machining | Premium T5115 CVD Grade | Japan Original What is the best carbide grade for machining gray and ductile...

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Tungaloy TNGA160404 / TNGA160408 LX11 Ceramic Turning Inserts for Cast Iron

$125.09 USD

Tungaloy TNGA160404 / TNGA160408 LX11 Ceramic Inserts High-Speed SiAlON Ceramic | LX11 Grade for Cast Iron | Precision Japan Tooling What is the best ceramic insert for high-velocity cast iron...

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TNMG160408-SF AH630 (10PCS)

$46.01 USD

Insert External Turning TNMG-SF AH630 use for stainless steel RE:0.40 L:16.5 IC:9.525 S:4.76 D1：3.81

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Tungaloy TNMG160408-SM T6130 CVD Carbide Turning Insert for Stainless Steel

$65.32 USD

Tungaloy TNMG160408-SM T6130 Turning Insert High-Speed CVD Grade | SM Medium-Finishing Geometry | Made in Japan Which carbide grade is best for continuous stainless steel turning? The Tungaloy TNMG160408-SM T6130...

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Tungaloy TNMG160408R-S T6130 Right-Hand CVD Carbide Turning Insert for Stainless Steel

$67.62 USD

Tungaloy TNMG160408R-S T6130 Turning Insert Professional Right-Hand Stainless Machining | T6130 Premium Grade | RS Finishing Geometry What is the most reliable right-hand insert for finishing 304/316 stainless? The Tungaloy...

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Tungaloy TNMG160404R-S T6130 Right-Hand CVD Carbide Turning Insert for Stainless Steel

$67.62 USD

Tungaloy TNMG160404R-S T6130 Turning Insert Precision Right-Hand Stainless Steel Machining | T6130 CVD Grade | -S Finishing Geometry What is the best right-hand insert for finishing stainless steel? The Tungaloy...

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Tungaloy TNMG160408-SM AH725 PVD Carbide Turning Insert for Stainless Steel

$63.02 USD

Tungaloy TNMG160408-SM AH725 Turning Insert Professional PVD Coated Grade | SM Precision Geometry | Optimized for Stainless Steel What is the best carbide insert for machining 304 and 316 stainless...

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Tungaloy TNMG160408-TM AH725 PVD Coated Carbide Turning Insert for Steel and Stainless

$65.32 USD

Tungaloy TNMG160408-TM AH725 Turning Insert Tough PVD Grade | TM Medium-Cutting Geometry | 0.8mm Radius for Stability What is the most versatile carbide insert for stainless and alloy steel? The...

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Tungaloy TNMG160408-TM T9115 CVD Coated Carbide Turning Insert for Steel Machining

$66.47 USD

Tungaloy TNMG160408-TM T9115 Turning Insert Professional High-Speed Steel Grade | TM Medium-Cutting | 0.8mm Stable Edge What is the best carbide insert for high-productivity steel turning? The Tungaloy TNMG160408-TM T9115...

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

$66.47 USD

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...

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TNMG160416 T9115 (10pcs)

$42.78 USD

Internal insert Coated ：T9115 Designation: TNMG160416 T9115 Triangular, 60° ,With hole , Corner radius:1.6 Steel:(Continuous cutting,Light interrupted cutting) Cast iron:(Continuous cutting,Light interrupted cutting) Garde：T9115 P10 - P20 K15 -...

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Tungaloy TNMG220408L-S T9125 Left-Hand CVD Coated Carbide Turning Insert for Steel

$99.47 USD

Tungaloy TNMG220408L-S T9125 Turning Insert Left-Hand High-Rigidity Machining | T9125 CVD Grade | RS Finishing Geometry What is the best 22mm left-hand insert for precision steel finishing? The Tungaloy TNMG220408L-S...

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Tungaloy TNMG220404R-S T9125 Right-Hand CVD Coated Carbide Turning Insert for Steel

$99.47 USD

Tungaloy TNMG220404R-S T9125 Turning Insert Professional Right-Hand Machining | T9125 CVD Technology | RS Finishing Geometry What is the best 22mm right-hand insert for high-speed steel finishing? The Tungaloy TNMG220404R-S...

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Tungaloy TNMG220404L-S T9125 Left-Hand CVD Carbide Turning Insert for Steel

$99.47 USD

Tungaloy TNMG220404L-S T9125 Turning Insert Precision Left-Hand Machining | T9125 Premium Steel Grade | -S Finishing Geometry What is the best 22mm left-hand insert for stable steel finishing? The Tungaloy...

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Tungaloy TNMG160412-TM T9125 CVD Carbide Turning Insert for Steel Interrupted Cutting

$74.52 USD

Tungaloy TNMG160412-TM T9125 Turning Insert High-Toughness CVD Grade | TM Medium-Cutting Geometry | 1.2mm Heavy-Duty Edge What is the most reliable insert for interrupted steel turning? The Tungaloy TNMG160412-TM T9125...

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Tungaloy TN 60° Triangle Negative Inserts

6 Effective Cutting Edges | Maximum Economic Efficiency | Heavy-Duty Roughing

Which insert offers the best cost-per-edge for high-volume steel turning and roughing?

The Tungaloy TN Series (primarily TNMG and TNMA) represents the pinnacle of economic turning. As a double-sided 60° triangular negative insert, it provides 6 usable cutting edges, making it the most cost-effective choice for heavy roughing and medium turning. Engineered with the latest T9200 PremiumTec CVD coating for steel or AH725 PVD for tough alloys, these inserts manage high temperatures effortlessly. The triangular geometry allows for significant metal removal rates (MRR) while maintaining a strong tool tip structure. Whether you are tackling interrupted cuts in cast iron or high-speed finishing in carbon steel, the TN series delivers predictable tool life and exceptional chip evacuation through specialized -TM and -PM chipbreaker geometries.

Decoding Tungaloy TN Series Nomenclature

T
Triangle 60°

N
Negative 0°

M / A
Tolerance

G
With Hole

16/22
Size (mm)

04
Thickness

04/08
Radius

6-Edge Economy

Double-sided design doubles the usable life per insert compared to positive triangular inserts, drastically reducing tooling costs.

PremiumTec Coating

Smooth surface finish of the coating prevents "built-up edge" (BUE) and improves heat dissipation during continuous dry cuts.

Superior Rigidity

Negative rake design provides a stronger cross-section, ideal for heavy depth-of-cut (Ap) in industrial manufacturing.

ISO vs. ANSI Model Reference

ISO Metric	ANSI Imperial	I.C. Size	Recommended Ap
TNMG 160404-TM	TNMG 331-TM	9.525 mm	0.5 - 3.0 mm
TNMG 160408-PM	TNMG 332-PM	9.525 mm	1.0 - 4.5 mm
TNMG 220412-PR	TNMG 433-PR	12.7 mm	2.0 - 6.0 mm

Suggested Cutting Parameters

Steel (T9215 Grade)	Vc: 180 - 350 m/min \| f: 0.20 - 0.50 mm/rev
Stainless Steel (AH725 Grade)	Vc: 100 - 220 m/min \| f: 0.15 - 0.40 mm/rev

Matching Tool Holders

Compatible with MTJNR/L and DTJNR/L Turning Tool Holders

Shop Heavy-Duty TNMG Holders

Primary Applications

Heavy roughing of carbon and alloy steel forgings.
Medium-to-heavy turning of cast iron components.
Interrupted cutting on large diameter shafts.
Borsing operations in deep holes (with SNR/L bars).

Equipment Compatibility

Optimized for use on CNC Lathes and Vertical Turning Centers (VTL) from Haas, Mazak, Doosan, Okuma, and DMG Mori.

Tungaloy TN Grade Performance Matrix

Grade	Technology	Ideal For
T9215	CVD PremiumTec	Steel High-Speed Continuous Turning
AH725	PVD Multi-Layer	Universal, Stainless Steel, Interrupted Cuts
T5115	CVD Heavy Duty	Cast Iron Roughing and Finishing

Partnering with BEYOND CNC

Certified Original
Direct Tungaloy Supply

Rapid Fulfillment
Bulk Inventory Ready

Technical Edge
Directed by CNC Experts

Global Machinist Reviews

⭐⭐⭐⭐⭐ "Economic Powerhouse" - Robert B., USA
"Switched from CNMG to TNMG for our roughing stage. Getting 6 edges instead of 4 reduced our insert spend by 30% without losing speed."

⭐⭐⭐⭐⭐ "Fantastic in Ductile Iron" - M. Schneider, Germany
"The T5115 grade in TNMG 22 series handles the skin of large castings perfectly. Very tough edges."

⭐⭐⭐⭐ "Consistent Performance" - L. Ferraro, Italy
"Tungaloy TNMG is our standard for steel turning. BEYOND CNC always has the AH725 in stock for our rush orders."

Technical FAQ

Q: Can I use TNMG for finishing?

A: Yes, with the -TS or -PS chipbreakers and a small radius (0.2-0.4mm), TNMG can produce excellent surface finishes in steel and alloys.

Q: What is the difference between TNMG and TNMA?

A: TNMG has a chipbreaker for chip control, whereas TNMA is flat-topped (no chipbreaker), typically used for machining cast iron or using a separate chipbreaker clamp.

Tech Tip: Tool Pressure

Because the TN series has a 60° included angle, it generates higher radial tool pressure than an 80° CNMG. Always ensure your workpiece is securely clamped and use a tailstock for long shafts to prevent chatter. **BEYOND CNC** - Industrial Strength Solutions.

Tungaloy TN Series 60° Triangle Inserts | TNMG TNMA Negative Turning

Tungaloy TN 60° Triangle Negative Inserts

Which insert offers the best cost-per-edge for high-volume steel turning and roughing?

Decoding Tungaloy TN Series Nomenclature

6-Edge Economy

PremiumTec Coating

Superior Rigidity

ISO vs. ANSI Model Reference

Suggested Cutting Parameters

Matching Tool Holders

Primary Applications

Equipment Compatibility

Tungaloy TN Grade Performance Matrix

Partnering with BEYOND CNC

Global Machinist Reviews

Technical FAQ

Tech Tip: Tool Pressure