Mitsubishi TNMA160408 UC5115 | CVD Carbide Cast Iron Insert
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TNMA160408 UC5115
Mitsubishi Materials | The Cast Iron Turning Authority
The Mitsubishi TNMA160408 UC5115 is a robust CVD coated carbide insert designed for high-efficiency turning of cast iron. Utilizing the UC5115 grade with thick Al2O3 coating technology, this insert offers extreme thermal protection and crater wear resistance. The 0.8mm radius combined with a flat-top (No Chipbreaker) design makes it a top-tier long-tail industrial tool for heavy-duty machining of gray and ductile iron.
High-Speed Cast Iron | K-Class Carbide | Enhanced Edge Strength
Designation Code Decipher
Triangular Shape
0° Relief Angle
M-Class Tolerance
Flat Top (No Breaker)
16.5mm Edge
4.76mm Thick
0.8mm Radius
International Standard Reference
| Feature | ISO (Metric) | ANSI (Inch) |
|---|---|---|
| Part Number | TNMA160408 | TNMA 332 |
| Inscribed Circle (IC) | 9.525 mm | 0.375" |
| Nose Radius (RE) | 0.8 mm | 0.031" |
UC5115 CVD Grade
The UC5115 grade is a specialized CVD turning insert material featuring a thick alumina coating layer. This provides exceptional resistance to high-temperature oxidation and flank wear when machining abrasive cast iron. It is optimized for stable turning in continuous cutting conditions.
TNMA Flat-Top Geometry
The TNMA flat-top geometry is designed without a chipbreaker to maximize the edge strength of this indexable turning insert. Because cast iron produces brittle, segmented chips, the flat-top design ensures the tool can handle heavy loads without the risk of chipbreaker erosion or edge deformation.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Gray Cast Iron (FC300) | 200 - 450 m/min | 0.15 - 0.50 mm/rev | 1.0 - 5.0 mm |
| Ductile Cast Iron (FCD) | 150 - 350 m/min | 0.15 - 0.45 mm/rev | 0.5 - 4.5 mm |
MATCHING TOOL HOLDERS
Perfectly suited for MTJNR/L or WTJNR/L top-clamp tool holders (Size 16).
Browse Size 16 Tool Holders →
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This Mitsubishi 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.