CCMT09T308-HM YBM251 Carbide Turning Insert | ZCC.CT | CVD Coated | 10pcs
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ZCC.CT CCMT09T308-HM YBM251: Professional Stainless Steel Turning Solutions
Product Overview
"Which insert grade offers the highest reliability and tool life when performing medium-duty turning on gummy stainless steel materials like 304 or 316?"
The ZCC.CT CCMT09T308-HM YBM251 is a high-performance carbide turning insert specifically engineered for the M-group (Stainless Steel). The YBM251 grade features an advanced CVD coating with a specialized substrate that provides a perfect balance of toughness and wear resistance, effectively preventing built-up edge (BUE). The HM chipbreaker is designed for medium-duty machining, featuring a reinforced cutting edge and an optimized rake angle that ensures stable chip breaking across a wide range of cutting conditions.
Key Features
- Optimized YBM251 Grade: Specifically developed for stainless steel (M15–M35), offering superior resistance to notch wear and plastic deformation.
- HM (Medium) Chipbreaker: Versatile geometry that provides excellent chip control for both internal boring and external turning.
- CVD Multi-Layer Coating: Enhances thermal stability and reduces friction, extending tool life in high-temperature cutting zones.
- Durable 0.8mm Radius: Provides a robust cutting edge suitable for medium feed rates and increased depth of cut (Ap).
Technical Specifications
ISO Model Decoding (CCMT 09T308-HM)
80° Diamond
7° Relief
Tolerance
Hole/Chipbreak
9.7mm Edge
3.97mm Thick
0.8mm Radius
Medium Cut
| Metric Model | ANSI Equivalent |
|---|---|
| CCMT09T308-HM | CCMT 32.52-HM |
Cutting Parameters Recommendation
| Workpiece Material | Cutting Speed (Vc) | Feed rate (fn) |
|---|---|---|
| Austenitic Stainless (304/316) | 140 - 240 m/min | 0.15 - 0.35 mm/rev |
| Duplex Stainless Steel | 100 - 180 m/min | 0.12 - 0.30 mm/rev |
Compatibility & Tool Holders
Designed for Versatile Turning Operations:
Fits all standard S-Type screw-clamping tool holders.
Applications
The CCMT 09T308-HM YBM251 is the industrial choice for Medium Machining in:
ZCC.CT Grade Guide (Stainless Steel)
| Grade | Condition | Main Advantage |
|---|---|---|
| YBM151 | High Speed / Stable | Max Wear Resistance |
| YBM251 | General Purpose | Balanced Toughness & Life |
Customer Reviews
"Top Tier for 316 Stainless"
"Consistency is key for us in the USA. These YBM251 inserts outlasted our previous brand by 20% on 316 stainless valve bodies."
— John D., USA
"Great Chip Breaking"
"The HM chipbreaker solved our 'birds-nesting' issues on the CNC lathe. Chips are small and manageable. Very satisfied."
— Hans W., Germany
"Reliable Tooling"
"Used for boring operations in Italy. Very stable edge and good surface finish. Will buy again."
— Pietro R., Italy
"Cost Effective"
"Perfect for our high-volume production in Japan. High reliability and very competitive price for this quality level."
— Yuki T., Japan
Frequently Asked Questions
Q: Is YBM251 better than YBM151 for interrupted cuts?
A: Yes, YBM251 has higher toughness and impact resistance, making it more suitable for interrupted cutting or less stable machining conditions.
Q: What is the main application of the HM chipbreaker?
A: It is a general-purpose medium-duty chipbreaker designed for a wide range of depths of cut and feed rates on steel and stainless steel.
Q: Can I use this for internal boring?
A: Absolutely. The CCMT 09T3 geometry is excellent for boring operations, provided you have a compatible boring bar (e.g., S16Q-SCLCR09).
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.