ZCC.CT APKT11T304-PM YBM251 Carbide Insert – 11mm Finish Milling R0.4 Steel
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APKT11T304-PM YBM251 Milling Insert
Premium PVD Coated Carbide for Superior Stainless Steel Processing
Product Overview
"Which milling insert is the best choice for achieving high stability and smooth chip evacuation in 304 or 316 stainless steel?"
The APKT11T304-PM YBM251 is engineered by ZCC.CT specifically to tackle the challenges of M-class (Stainless Steel) materials. Utilizing the YBM251 PVD coating, it combines a fine-grained carbide substrate with an ultra-thin, high-toughness coating layer. The -PM chipbreaker geometry is designed for medium-duty milling, ensuring low cutting forces and preventing built-up edge (BUE) during intensive CNC operations.
Key Features
- 🔹 Superior Heat Resistance: The Nano-PVD coating manages thermal shocks during wet or dry milling.
- 🔹 PM Geometry: Optimized rake angle for reduced friction and high-precision surface finishes.
- 🔹 Tool Life Longevity: High-density carbide substrate resists notch wear and chipping.
- 🔹 ISO Compliance: 100% compatible with global standard milling cutters designed for APKT11T3 inserts.
Technical Specifications
| Parameter | Metric (ISO) | Imperial (ANSI) |
|---|---|---|
| Insert Size | 11 mm | 7/16" |
| Corner Radius | 0.4 mm | 0.0157" |
| Cutting Speed (Vc) | 120 - 220 m/min | 393 - 721 SFM |
| Feed per Tooth (fz) | 0.08 - 0.20 mm/z | 0.003 - 0.008 IPT |
Model Decoder: APKT 11T3 04 -PM
85° Parallelogram
11° Clearance
Tolerance Class
Hole/Chipbreaker
Cutting Edge
3.97mm Thick
0.4mm Radius
Medium Cut
Applications & Compatibility
Workpiece Materials:
Mainly for Stainless Steel (AISI 304, 316, 430). Also suitable for Carbon Steel and Heat Resistant Alloys (Inconel/Titanium) under stable conditions.
Equipment:
CNC Machining Centers, Vertical/Horizontal Milling Machines, and Multi-axis CNC Turn-Mill centers.
Grade Comparison (ZCC.CT Milling)
YBM251 (Current Grade): Specialized for Stainless Steel. Balanced toughness and wear resistance for M-class materials.
YBD152: Targeted for Cast Iron (K-class) milling with high-speed CVD coating.
YBM351: Tougher grade for heavy interrupted cuts in stainless steel or lower cutting speeds.
Why Choose Us?
We are a certified technical director-led operation specializing in ZCC.CT global distribution. We offer 100% genuine products, technical engineering support, and rapid global fulfillment.
"Reliable for 316SS"
"The YBM251 grade is much more stable than the cheaper alternatives we tried. Clean finish." — Mike R., USA
"Top Qualität"
"Sehr gute Standzeit bei der Bearbeitung von Edelstahl. Schneller Versand nach Deutschland." — Klaus H., Germany
"Good performance"
"Ottimo per fresatura su acciaio inox. Prezzo competitivo." — Luca V., Italy
"精度が高い"
"SUS304の加工に最適です。チップの寿命が長くなりました。" — Kenji T., Japan
FAQ - Technical Support
A: While possible, it is not recommended. For aluminum, the 'LC' or 'LH' chipbreaker with an uncoated grade is preferred to prevent stickiness.
A: High-pressure internal coolant is highly recommended for YBM251 to ensure chip evacuation and thermal stability in stainless steel.
A: Yes, as long as the holder is designed for the ISO APKT11T3 standard.
Pro Tip: To avoid work hardening in stainless steel, ensure your feed rate (fz) is never lower than 0.05 mm/z. The YBM251 coating performs best when the chip thickness is consistent.
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.