Unlock superior performance and cost savings with the Mitsubishi RPMT1204M0E-JS VP15TF — a high-quality round carbide insert engineered for rotating tool applications. Backed by Mitsubishi’s trusted materials technology, this insert features a MIRACLE (Al,Ti)N PVD coating that significantly boosts heat resistance and adhesion strength, leading to longer tool life and reduced wear

Hook / Attention Line

Cut more, change less – unlock long tool life and high-speed milling with Mitsubishi RPMT1204M0E-JS VP15TF inserts.

Key Features & Specs

  • Shape: Round / “BRP” style 

  • Inscribed Circle (IC): 12 mm 

  • Thickness (S): 4.76 mm 

  • Clearance angle (AN): 11° 

  • Fixing-hole diameter (D1): 4.4 mm 

  • Chip-breaker: JS 

Grade & Coating:

  • Grade: VP15TF — ultra-micro-grain carbide substrate

  • Coating: MIRACLE (Al,Ti)N PVD, thin film for superb heat-resistance and edge strength. 

  • Hardness: ~ 91.5 HRA, T.R.S ~ 2.5 GPa per Mitsubishi specs.

Why It’s a Best Seller

  • High durability: The (Al,Ti)N PVD “MIRACLE” coating forms a protective alumina (Al₂O₃) film during cutting, boosting oxidation resistance and life. 

  • Consistent surface finish: The JS chip breaker ensures predictable chips, good stability, and smoother finishes.

  • Less downtime: Higher wear resistance means fewer insert changes – drastically reducing production interruptions.

  • Versatility: Works across a broad range of materials (steel, stainless, cast iron) – reducing your need to stock multiple grades.

🏭 Application Industries

  • Automotive: Machining gear blanks, housings, or rotating parts where high productivity and long tool life are critical.

  • Aerospace: Components in stainless or alloy steels where heat management and surface finish matter.

  • Die & Mold: Machining mold steel or castings efficiently.

  • General Engineering & Job Shops: Ideal for versatile milling tasks in rotating-tool setups.

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Frequently Asked Questions

It is optimized for steel (P), stainless steel (M), and cast iron (K) in the ISO P15–35, M15–35, K15–35 range

VP15TF uses a MIRACLE (Al,Ti)N PVD coating that provides high oxidation resistance and strong adhesion, enabling longer tool life and higher cutting speeds

The insert has a 12 mm inscribed circle (IC), 4.76 mm thickness, 11° clearance angle, and a 4.4 mm central hole for mounting.

Round inserts are ideal for rotating-tool milling (face milling, indexable end mills) because they offer multiple cutting edges (you can index them), good chip control, and stable cutting under varying depths of cut.

Because of its high wear resistance and long life, you change inserts less often. That reduces downtime, lowers tooling costs, and improves your overall productivity and part-cost efficiency.