Mitsubishi CCMW09T304 UC5115 Flat-Top Carbide Insert for Cast Iron (10pcs)
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CCMW09T304 UC5115
Cast Iron Specialist | Flat-Top Robust Edge | UC5115 CVD Performance
The Cast Iron Authority
UC5115 Grade (The K-Class Standard): UC5115 is Mitsubishi’s premier CVD (Chemical Vapor Deposition) grade for cast iron. It utilizes a thick alumina layer for incredible heat resistance. Since cast iron is highly abrasive, this grade provides a hard, protective shield that prevents "flanking" and crater wear, even during high-velocity machining.
CCMW Geometry (Flat-Top): The CCMW differs from the standard CCMT by having a flat rake face (no chipbreaker). This design is optimized for materials like Cast Iron, which produce short, crumbly chips that do not require mechanical breaking. The result is a much stronger cutting edge that can withstand the high-frequency impacts of abrasive sand inclusions or scale.
0.4mm Precision Radius: The 04 (1/64") radius ensures clean surface finishes and minimizes cutting pressure, making it ideal for both external turning and internal boring in cast iron housings.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CCMW09T304 | 9.525 mm | 3.97 mm | 0.40 mm |
| Imperial | CCMW32.51 | 3/8" | 5/32" | 0.0157" (1/64") |
Cast Iron Cutting Parameters
*UC5115 allows for high speeds in gray iron. For ductile iron, maintain consistent feed to avoid work hardening.
| Material Group | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Gray Cast Iron (GG25) | 150 - 400 m/min | 0.10 - 0.30 mm/r | 0.50 - 3.00 mm |
| Ductile Iron (GGG40) | 120 - 300 m/min | 0.10 - 0.25 mm/r | 0.50 - 2.50 mm |
Compatible Tool Holders
Maximum performance for SCLCR/L 09 series Turning Tools and Boring Bars:
Shop SCLCR 09 HoldersPro-Tip: CCMW vs. CCMT
CCMW (Flat Top): Best for Cast Iron and hardened steels. The edge is significantly stronger because it doesn't have the "dip" of a chipbreaker.
CCMT (With Chipbreaker): Only use for ductile materials like Steel or Stainless where long stringy chips need to be broken. If used on Cast Iron, the chipbreaker geometry often wears out faster than a flat-top edge.
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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.