ZCC.CT DCMT11T304-HM YBM251 Carbide Turning Inserts for Stainless Steel
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💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
DCMT11T304-HM YBM251 Turning Inserts
Product Overview
The DCMT11T304-HM YBM251 is a high-performance 55° rhombic positive insert specifically engineered for Stainless Steel (M-Class). By utilizing the YBM251 Grade—which features a specialized CVD coating with high thermal stability and impact resistance—this insert excels in medium-duty turning. The -HM (Medium-Duty) chipbreaker is designed with a reinforced edge and optimized rake angle to manage the high cutting forces and work-hardening characteristic of stainless materials.
Key Advantages
- ✔ YBM251 Grade Technology: A tough substrate combined with thick CVD coating for M15–M35 applications, offering superior notch wear resistance.
- ✔ -HM Chipbreaker: Optimized for medium cutting depths, ensuring stable chip breaking and reducing the risk of built-up edge (BUE).
- ✔ High Thermal Stability: Maintains cutting edge integrity even under high-temperature continuous machining.
- ✔ Versatile Application: Ideal for both internal boring and external turning of stainless steel components.
Nomenclature Decoding
55° Rhombic
7° Relief
Tol. M
Hole/Feature
11.6mm Edge
3.97mm Thick
0.4mm Radius
Technical Specifications
| Standard | Metric (ISO) | Inch (ANSI) |
|---|---|---|
| Designation | DCMT11T304-HM | DCMT 32.51-HM |
| Inscribed Circle | 9.525 mm | 3/8" |
| Thickness | 3.97 mm | 5/32" |
Recommended Cutting Data
| Cutting Speed (Vc) | 120 - 220 m/min |
| Feed Rate (fn) | 0.10 - 0.30 mm/rev |
| Depth of Cut (ap) | 0.5 - 3.0 mm |
Matching Tool Holders
Compatible with standard SDJCR/L or SDUCR/L Holders:
SDJCR2020K11 | SDJCR1616H11 | S20R-SDUCR11
Shop Compatible Holders →Target Materials
- Austenitic Stainless Steel (304, 316)
- Duplex Stainless Steel (2205)
- Precipitation Hardening Steel (17-4PH)
- Ferritic & Martensitic Stainless Steels
Material Comparison
- YBM251 (Current): General purpose for semi-finishing stainless.
- YBM151: Higher speed, stable finishing of stainless.
- YBG205: Optimized PVD grade for high-precision finishing.
Why Choose ZCC.CT Tools?
As a global leader in cemented carbide technology, ZCC.CT provides high-precision CNC solutions that reduce costs and increase productivity. The YBM series is internationally recognized for its stability in difficult-to-machine materials, ensuring your workshop achieves mirror-like finishes and consistent tool life.
Verified Customer Reviews
⭐⭐⭐⭐⭐
"Exceptional tool life in 316"
We use YBM251 in our Ohio shop for pump components. The chip control is fantastic at medium speeds.
— David S., USA⭐⭐⭐⭐⭐
"Top Performance"
Consistent quality across batches. The -HM breaker is very versatile for various stainless grades.
— Klaus H., Germany⭐⭐⭐⭐
"Affidabile e Preciso"
Great for semi-finishing. Excellent surface finish on austenitic steel shafts.
— Roberto M., Italy⭐⭐⭐⭐⭐
"コストパフォーマンス最高"
Stable performance in heavy production runs. Highly recommended for CNC lathes.
— Hiroshi T., JapanFrequently Asked Questions
A: While YBM251 has high thermal stability, using high-pressure coolant is highly recommended for stainless steel to prevent work hardening and improve tool life.
A: -HM is for medium-duty semi-finishing with larger depths of cut, while -HF is designed for high-precision light finishing with smaller feed rates.
A: Yes, the YBM251 grade is tough enough to handle the higher cutting forces and abrasion of 2205 duplex steel.
Material Comparison Tip: For high-speed machining of Austenitic Stainless, YBM251 is the primary choice. However, if you are machining small components with thin walls, the YBG205 (PVD) grade might offer lower cutting forces to prevent part deflection.
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.