TaeguTec VNMG160404MT TT8115 Carbide Turning Insert | 10 Pcs/Box
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TaeguTec VNMG160404MT TT8115 Inserts
Carbon & Alloy Steel Turning and Profiling | TT8115 CVD Grade | Box of 10 Pcs
35-degree diamond carbide inserts with a 0.4mm corner radius
The TaeguTec VNMG160404MT TT8115 is a double-sided, negative 35° rhombic carbide turning insert with an MT chipbreaker and a 0.4mm nose radius. The listing identifies TT8115 as a CVD-coated grade for steel turning. Legacy TT8115 information describes continuous and light interrupted steel turning at elevated speeds. Match the grade and geometry to the actual steel, hardness, machine rigidity and cutting conditions rather than assuming a guaranteed finish or tool life. Explore our TaeguTec negative turning inserts for related tooling.
Core Engineering Features
TT8115 CVD-Coated Carbide
A steel-turning grade for continuous and light interrupted applications under suitable cutting conditions.
MT Chipbreaker
Select feed and depth of cut within the manufacturer's recommendations for this chipbreaker and workpiece.
35° Profiling Geometry
The slender diamond shape and 0.4mm nose radius provide contour access subject to holder approach angle, clearance and toolpath.
ISO Code Specification Breakdown
Technical Specifications & Dimensional Comparison
| Parameter | Metric (Standard) | Imperial Equivalent |
|---|---|---|
| ISO / ANSI Designation | VNMG 160404 MT | VNMG 331 MT |
| Inscribed Circle (IC) | 9.525 mm | 0.375" (3/8") |
| Thickness (S) | 4.76 mm | 0.1875" (3/16") |
| Corner Radius (RE) | 0.40 mm | 0.0157" (approx. 1/64") |
| Grade & Coating | TT8115 (CVD Coated) | Steel Turning Carbide |
Selecting Cutting Parameters
Use the manufacturer's recommendations for the exact TT8115 grade, MT chipbreaker, workpiece material and hardness, cut stability and coolant method. Previously listed numerical ranges have not been verified as recommendations for this exact item and are not retained as universal settings. Confirm cast-iron applications separately. Do not transfer TT8115B data to TT8115 without confirming the supplied grade.
Tool Holders & Boring Bar Resources
Match VNMG160404MT to the holder manufacturer's specified pocket, clamping system, approach angle and clearance requirements. Related holder listings include the Beyond MVUNR2020K16 Right-Hand Turning Tool Holder, Beyond MVUNL2525M16 Left-Hand Turning Tool Holder, and Beyond MVQNR2525M16 Right-Hand Turning Tool Holder. Verify compatibility for each holder before ordering.
For internal profiling and bore machining, explore our rough and fine boring series, browse screw-on system boring bars, or read our engineering guide on how to choose the right boring bar and insert.
Industrial Applications
- Carbon & Alloy Steel Turning: Select TT8115 for steel machining using the grade's recommended cutting conditions.
- Contour & Copy Turning: Profiling of shafts and other turned components with a suitable holder, machine setup and toolpath.
- 0.4mm Nose Radius: Select for the component profile and finish requirements; clearance and minimum achievable geometry depend on the complete tool arrangement.
System Compatibility & Related Insert Catalogs
The VNMG 160404MT (listed ANSI VNMG 331 MT) requires a holder specifically suitable for its complete designation. A 35° shape and 9.525mm IC alone do not establish compatibility with every clamp system. Explore TaeguTec VNMG inserts, TaeguTec DNMG inserts, and TaeguTec CNMG inserts. Compare related Korloy VNMG and ZCC-CT VNMG collections using their own manufacturer specifications.
TaeguTec Grade Selection
- TT8115: The listed CVD-coated steel-turning grade. Keep this exact grade identity rather than substituting TT8115B.
- TT8125: CVD-coated grade for general steel turning, combining wear resistance and toughness.
- TT9225: Also CVD coated, not PVD. TaeguTec specifies TiCN–Al2O3–TiCN coating layers for general stainless steel machining, with published ISO M15–M30 and S15–S30 ranges.
Why Machinists Choose Our Store
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Directly sourced original TaeguTec factory-sealed packages (10 pcs/box).
Same-Day Dispatch
In-stock cutting tools ship rapidly to keep your CNC spindles turning.
Technical Engineering Support
On-staff tooling specialists available for speed and feed recommendations.
Frequently Asked Questions
Q: Is this TT8115 or TT8115B?
A: This listing is TT8115. Do not assume that all specifications for TT8115B apply to the supplied TT8115 insert.
Q: Does CVD coating alone guarantee better tool life than PVD?
A: No. Grade, geometry, workpiece, cutting conditions and machine stability all affect tool life and surface finish.
Q: How many inserts are included?
A: Each box contains 10 inserts.
Need Help With TaeguTec Inserts?
Looking for a TaeguTec 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 TaeguTec 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.