Mitsubishi CCMT120404 UC5115 CVD Carbide Insert for Cast Iron (10pcs)
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CCMT120404 UC5115
High-Speed Cast Iron Specialist | Black Super CVD Coating | 0.4mm Precision Radius
CVD Material Science
UC5115 Grade (CVD Mastery): Specifically engineered for ISO K (Cast Iron). This grade features a thick-layer CVD (Chemical Vapor Deposition) coating. The proprietary Black Super Coating provides incredible heat resistance and surface hardness. It is designed to handle the abrasive wear caused by the sand and graphite in cast iron, outlasting PVD grades by up to 300% in stable, continuous cuts.
0.4mm Radius (Precision for Large Workpieces): The 04 (1/64") radius is the choice for fine to semi-finishing on the robust Size 12 substrate. It provides lower radial cutting forces, which is essential for maintaining tight tolerances and preventing chatter in large boring bars or on long, slender shafts.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CCMT120404 | 12.70 mm | 4.76 mm | 0.40 mm |
| Imperial | CCMT431 | 0.500" (1/2") | 0.187" (3/16") | 0.0157" (1/64") |
Recommended Cutting Parameters
*UC5115 performs best at higher surface speeds (Vc) to utilize the CVD coating's thermal properties.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Gray Iron (FC250+) | 200 - 450 m/min | 0.05 - 0.20 mm/r | 0.30 - 2.50 mm |
| Ductile Iron (FCD) | 150 - 300 m/min | 0.05 - 0.18 mm/r | 0.30 - 2.00 mm |
Required Tool Holder
Maximum rigidity for SCLCR/L 12 series external holders and large diameter bars:
Shop SCLCR 12 HoldersPro-Tip: UC5115 vs UC5105
UC5115 (Stable/Finish): The Standard Choice. It provides a perfect balance of toughness and wear resistance for most cast iron applications.
UC5105 (High Speed): Choose UC5105 only for ultra-high-speed continuous turning of gray iron where wear resistance is the absolute priority. For interrupted cuts or ductile iron, UC5115 is much safer.
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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.