This pack of 50 CCMT060204 carbide inserts—featuring a premium purple PVD coating and packaged in a durable red storage box—forms a high-value precision solution engineered for semi-finishing to finishing turning across CNC lathes and boring systems. Tailored for small-to-medium batch production of precision components (e.g., automotive valve stems, hydraulic fitting bores, precision gear shafts), these inserts excel in processing a wide spectrum of materials, from carbon steel (10#, 45#) and alloy steel (20Cr, 42CrMo) to challenging stainless steel (304, 316) and pre-hardened steel (HRC ≤45) .
Designed with an 80° rhombic geometry and positive rake angle, the inserts deliver ultra-low cutting forces, tight dimensional tolerance (±0.003mm), and superior surface finishes (Ra <0.6μm)—critical for precision-machined parts like bearing journals or hydraulic valve cores. The vibrant purple coating (typically TiAlN/TiCN multi-layer) enhances wear resistance by 60% compared to single-coated alternatives, while the rugged red box with individual insert slots ensures organized storage and protection against edge damage during transport or shop use.
Core Specifications & Design Advantages
1. CCMT060204 Coding Breakdown (ISO Standard)
Every character defines critical functional and compatibility parameters for precision machining:
- CCMT: 80° rhombic turning insert for semi-finish/finish operations—breakdown:
- C: 80° rhombic insert shape, optimizing cutting force distribution and access to 90° shoulders without interference, ideal for stepped shafts .
- C: Positive rake angle design, reducing cutting resistance by 25% to minimize deformation of thin-walled workpieces (wall thickness ≤1.5mm) and improve chip flow .
- M: Medium tolerance class for precision clamping, ensuring consistent positioning when paired with standard tool holders (e.g., SCLCR, HTS-series) .
- T: Tapered edge with 7° clearance angle, balanced for efficient machining of medium-hard materials (HB 150-380) .
- 060204: Dimensional code—breakdown:
- 06: 6.35mm inscribed circle diameter (IC), matching standard small-to-medium tool holder pockets (e.g., H06 tool holder series) .
- 02: 2.38mm insert thickness, providing sufficient rigidity for cutting depths up to 2.0mm while maintaining compatibility with compact tool holders .
- 04: 0.4mm nose radius, balancing surface finish (Ra <0.6μm) and insert toughness—ideal for finishing operations where fine surface quality is required .
2. Purple Coating & Carbide Matrix: Performance Drivers
The inserts feature a purple multi-layer PVD coating (TiAlN/TiCN) and ultra-fine grain carbide matrix (e.g., grade MP680, QC7000) , with key performance attributes:
- Coating Technology: TiAlN/TiCN dual coating delivers exceptional oxidation resistance (up to 850°C) and low friction, preventing chip adhesion in sticky materials like austenitic stainless steel (304) . The purple hue is a hallmark of this high-performance coating, distinguishing it from lower-grade alternatives.
- Matrix Strength: Ultra-fine carbide particles (0.5-1μm grain size) enhance toughness, resisting chipping during interrupted cuts (e.g., cast steel with minor inclusions) and extending edge life in pre-hardened steel (HRC 40-45) .
- Chip Control: When paired with "MA" or "TE" chipbreaker designs (common in CCMT060204 variants), the insert efficiently breaks long chips into small, manageable pieces—avoiding tangling on workpieces or tool holders .
3. Red Box Packaging: Practicality for Shops
The included red storage box is engineered for shop-floor durability and organization:
- Protection: Thick cardboard construction with foam inserts featuring 50 individual slots, preventing insert edges from rubbing against each other (a leading cause of premature wear).
- Organization: Clear labeling space on each slot for tracking insert usage (e.g., "42CrMo service," "stainless steel only"), reducing mix-ups and waste.
- Portability: Compact size (18cm×12cm×3cm) fits in tool chests or machining carts, enabling easy transport between workstations.
Compatibility & Optimal Parameters
1. Tool Holder & Machine Fit
- Holder Compatibility: Exclusively pairs with 80° rhombic insert holders, including:
- Turning holders: SCLCR0903H06, SCLCL1010H06 (for external turning) .
- T-slot milling holders: HTS-16-H10-C12, HTS-18-H10-C12 (for slotting operations) .
- Boring bars: LBK/TWE-series carbide boring bars (for deep-hole finishing, up to 10D depth) .
- Machine Fit: Small-to-full-sized CNC lathes (e.g., Haas ST-10, Mazak QT Compact) and boring machines with 6mm+ tool turrets; suitable for workpieces φ8mm-φ50mm .
2. Optimal Cutting Parameters
| Material Type | Cutting Speed (m/min) | Feed Rate (mm/rev) | Depth of Cut (mm) | Coolant Recommendation |
|---|---|---|---|---|
| 45# Carbon Steel | 220-320 | 0.05-0.15 | 0.3-1.8 | Low-pressure emulsion (8-12L/min) |
| 42CrMo Alloy Steel | 180-280 | 0.04-0.12 | 0.2-1.5 | High-pressure coolant (20-30L/min) |
| 304 Austenitic Stainless Steel | 150-230 | 0.03-0.10 | 0.2-1.2 | Synthetic coolant (15-25L/min) |
| Pre-hardened Steel (HRC 40-45) | 120-200 | 0.03-0.09 | 0.2-1.0 | Synthetic coolant (20-30L/min) |
Application Range & Practical Value
1. Ideal Machining Scenarios
These inserts shine in precision-focused applications, including:
- Automotive Parts: Finishing 42CrMo transmission shaft journals (Ra <0.8μm, tolerance ±0.005mm).
- Hydraulic Components: Semi-finishing 316 stainless steel fitting bores, where chip control and corrosion-resistant machining are critical.
- Precision Gears: Finishing 20CrMnTi gear hubs, leveraging the 0.4mm nose radius for smooth tooth flanks.
- Deep-Hole Boring: Pairing with LBK-series tungsten carbide boring bars for 10D deep holes in alloy steel, with internal coolant channels extending insert life .
2. 50-Pack Value: Batch Production Efficiency
The 50-insert pack is optimized for medium-batch production, delivering:
- Reduced Downtime: Eliminates frequent reordering stops—one pack supports 5,000+ machining cycles in 45# carbon steel (100 cycles per insert).
- Cost Savings: Bulk packaging reduces per-insert cost by 30% compared to 10-pack alternatives.
- Inventory Control: The red box simplifies stock tracking, ensuring operators always have sharp inserts on hand for critical jobs.
Quality Assurance & Storage
- Precision Testing: Each insert undergoes laser measurement for dimensional accuracy (tolerance ±0.002mm) and edge sharpness (Ra <0.1μm on cutting edges).
- Coating Adhesion: 100% of inserts pass scratch tests (adhesion grade ≥HF1) to ensure coating durability under heavy cutting loads.
- Storage Tips: Keep the red box sealed when not in use to prevent moisture buildup (which can cause micro-corrosion); store in a cool, dry location (15-25°C) away from direct sunlight.
Whether finishing stainless steel hydraulic parts, semi-finishing alloy steel shafts, or boring precision holes, the 50pcs CCMT060204 purple inserts deliver unbeatable value, precision, and durability—all protected in a shop-ready red storage box.
On 27-Oct-2025 at 06:03:27 GMT, seller added the following information: