Tungaloy VNMG160412-TM T9115 CNC Turning Insert for Steel (ISO P), CVD Coated Carbide
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Tungaloy VNMG160412-TM T9115 (VNMG333)
Heavy-Duty Medium Cutting Insert for High-Speed Steel Turning
Product Overview
"Which insert offers the best edge strength for high-feed steel turning with excellent chip control?"
The Tungaloy VNMG160412-TM T9115 is a 35° rhombic negative insert engineered for maximum productivity. With a 1.2mm (R1.2) nose radius, this model provides significantly higher edge strength and surface finish stability compared to the 0.8mm version. It features the industry-leading T9115 CVD grade, optimized for ISO P steel machining, and the TM chipbreaker which balances cutting force and chip evacuation.
Key Performance Features
- Premium T9115 Grade: Multi-layered CVD coating (TiCN + Al2O3) provides extreme wear resistance at high temperatures.
- Reinforced 1.2mm Radius: Superior edge toughness, perfect for larger feed rates and reducing tool breakage in heavy-duty applications.
- TM (Turning Medium) Geometry: Specialized chipbreaker designed to prevent long, stringy chips in carbon and alloy steels.
- Double-Sided Efficiency: 4 cutting edges per insert deliver a lower cost-per-edge for high-volume CNC production.
Technical Specifications
VNMG 16 04 12 - TM Breakdown
35° Rhombic
0° Relief
Tolerance
Hole/Type
16mm Edge
4.76mm Thk
1.2mm Rad
Medium Breaker
| Metric Model | ANSI/Inch Model | Nose Radius (RE) | Main Grade |
|---|---|---|---|
| VNMG160412-TM | VNMG333-TM | 1.2 mm (3/64") | T9115 (CVD) |
Recommended Cutting Parameters (Steel)
| Material Group | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Low/Med Carbon Steel | 180 - 400 m/min | 0.20 - 0.50 mm/rev | 1.5 - 5.0 mm |
Applications & Tooling Compatibility
Optimized for medium to heavy turning of steel components in Automotive, Energy, and General Machining sectors.
Recommended Standard Toolholders:
MVJNR/L | MVVNN | MVQNR/L (Standard 1604/33x Holders)
Browse Compatible Toolholders →Material Comparison: Which T-Grade do you need?
| Grade | Primary Focus | Application Case |
|---|---|---|
| T9115 | High Speed & Stability | Continuous cutting, best wear resistance. |
| T9125 | Versatility & Toughness | Interrupted cuts, unstable setups. |
Customer Success Stories
"The 1.2mm radius on the VNMG160412 is a beast. We increased feed rate by 30% compared to the 0.8mm version."
— David T., USA 🇺🇸"T9115 grade is very predictable. No sudden flaking during high-speed runs on 42CrMo4."
— Marco V., Italy 🇮🇹"Excelente control de viruta. Muy recomendable para tornos CNC."
— Carlos P., Mexico 🇲🇽"Strong edge. Good for roughing to semi-finishing in one go."
— Kenji A., Japan 🇯🇵Frequently Asked Questions
1. Can the VNMG160412-TM be used for finishing?
While it can finish, the 1.2mm radius is better suited for medium to heavy cutting. For fine finishing, consider a 0.4mm radius with the -TS chipbreaker.
2. What is the benefit of the T9115 coating?
It uses Tungaloy's premium CVD technology with a thick Al2O3 layer, which prevents heat deformation at speeds up to 400 m/min.
3. Is this compatible with MVJNR holders?
Yes, it fits all standard 35° VNMG 1604 (VNMG 33x) style toolholders.
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.
This Tungaloy 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.