ZCC.CT ONHU060408-PF YBC302 Octagonal Milling Inserts for Steel
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ZCC.CT ONHU060408-PF YBC302 Milling Insert
16-Edge Octagonal Efficiency for Premium Steel Face Milling
Product Overview
The ZCC.CT ONHU060408-PF is a heavy-duty octagonal milling insert engineered for high-performance face milling. Utilizing the YBC302 CVD-coated grade, it is specifically optimized for ISO P20-P35 materials (Steel and Cast Steel). The PF chipbreaker features a positive geometry that reduces cutting forces, making it the ideal choice for finishing and semi-finishing operations where surface quality and tool longevity are critical.
Key Advantages
- ✔ 16 Cutting Edges: Double-sided octagonal design (8 edges per side) offers the lowest possible cost per edge.
- ✔ YBC302 CVD Coating: Exceptional wear resistance and toughness for stable cutting in medium-to-low speeds.
- ✔ PF Geometry: Positive rake angle ensures smooth chip flow and prevents built-up edge on steel workpieces.
Technical Specifications
Decoding ONHU060408-PF
Octagonal
0° Relief
Tolerance
Special
6.35mm L
4.76mm T
Finishing
| Feature | Metric (mm) | Imperial (ANSI) |
|---|---|---|
| Inscribed Circle (IC) | 12.7 mm | 0.500 in |
| Thickness (S) | 4.76 mm | 0.187 in |
| Corner Radius (RE) | 0.8 mm | 0.031 in |
Recommended Cutting Parameters (Steel)
| Material Group | Cutting Speed (Vc) | Feed per Tooth (fz) |
|---|---|---|
| Carbon Steel (< 200HB) | 180 - 280 m/min | 0.15 - 0.40 mm/z |
| Alloy Steel (200-350HB) | 120 - 220 m/min | 0.12 - 0.35 mm/z |
Compatible Face Milling Cutters:
FMP06 Series Face Mills (Octagonal Pocket)
Find Compatible Milling Bodies →Application Scenarios
- Face milling of large steel plates.
- Roughing and finishing of die and mold bases.
- General purpose steel structural components.
- Efficient machining of alloyed tool steels.
Machine Compatibility
- CNC Milling Machines (VMC/HMC).
- High-power machining centers.
- Standard FMP06 series tool holders.
ZCC.CT Steel Grade Comparison Matrix
| Grade | Application Range | Primary Feature |
|---|---|---|
| YBC302 (This) | P20 - P35 | High Toughness / Versatile Steel |
| YBC301 | P15 - P30 | Higher Speed Resistance |
| YBM253 | Stainless/Steel | Interrupted Cut Excellence |
Global CNC Machinist Feedback
⭐⭐⭐⭐⭐
"16 edges for this price? Unbeatable cost efficiency for our heavy steel plates."
— James R., USA 🇺🇸⭐⭐⭐⭐⭐
"Hervorragende Oberflächengüte bei legiertem Stahl. PF-Geometrie läuft sehr ruhig."
— Lukas M., Germany 🇩🇪⭐⭐⭐⭐⭐
"YBC302 grade is tough. We use it for semi-finishing and it holds the edge perfectly."
— Roberto G., Italy 🇮🇹⭐⭐⭐⭐⭐
"Perfect balance of speed and durability. Highly recommended for P-class materials."
— Hiroshi S., Japan 🇯🇵Frequently Asked Questions
Q: Why choose an octagonal milling insert like ONHU?
A: Octagonal inserts provide 16 cutting edges (8 per side), significantly reducing the cost-per-edge compared to square or round inserts.
Q: Is YBC302 suitable for dry machining?
A: Yes, the thick CVD coating provides excellent thermal insulation, making it very effective for dry face milling in steel.
Q: What does the PF chipbreaker signify?
A: PF stands for "Positive Finishing." It is a sharp, positive-rake geometry designed to minimize cutting pressure and improve surface finish.
Professional Tip: For octagonal inserts, ensure the milling cutter approach angle is set correctly to take advantage of the chip thinning effect, which allows for higher feed rates without increasing tool wear.
Need Help With ZCC.CT Inserts?
Looking for a ZCC.CT equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This ZCC.CT 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.