ZCC.CT CCMT09T308-53 YBC251 Carbide Turning Inserts for Steel
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ZCC.CT CCMT09T308-53 YBC251: The Versatile Choice for Steel Turning
Product Overview
"Which insert is most reliable for general-purpose steel machining, offering a balance between toughness for interrupted cuts and wear resistance for continuous turning?"
The ZCC.CT CCMT09T308-53 YBC251 is a highly versatile carbide insert designed for the P-group (Steel). The YBC251 grade combines a high-strength substrate with a multi-layer CVD coating (TiCN + Thick Al2O3), providing exceptional edge toughness and crater wear resistance. The -53 chipbreaker is specifically optimized for semi-finishing to light medium-duty machining, featuring a unique geometry that ensures smooth chip evacuation and reduces cutting forces, making it ideal for varying depths of cut in carbon and alloy steels.
Key Features
- YBC251 Versatile Grade: The "universal" grade for steel, offering superior impact resistance for light interrupted cuts.
- -53 Chipbreaker Design: Excellent chip control range, preventing chip tangling and workpiece marring.
- CVD Coating Technology: Advanced thick Al2O3 layer ensures thermal protection during high-temperature dry or wet cutting.
- Optimized Edge Toughness: Reduced risk of edge chipping, even when machining slightly irregular surfaces.
Technical Specifications
ISO Model Breakdown (CCMT 09T308-53)
80° Diamond
7° Relief
Tolerance
Hole/Chipbreak
9.7mm Edge
3.97mm Thick
0.8mm Radius
Semi-Finish
| Metric Model | ANSI/Imperial Equivalent |
|---|---|
| CCMT09T308-53 | CCMT 32.52-53 |
Recommended Machining Parameters
| Material Group (P) | Cutting Speed (Vc) | Feed rate (fn) |
|---|---|---|
| Low Carbon Steel | 240 - 380 m/min | 0.10 - 0.35 mm/rev |
| Alloy Steel | 180 - 320 m/min | 0.12 - 0.30 mm/rev |
Tool Holder Compatibility
Optimized for External and Boring Bar Operations:
Fits all standard S-Type screw-clamping tool holders.
Applications
The CCMT 09T308-53 YBC251 is the go-to tool for Semi-Finishing in:
ZCC.CT Steel Grade Selection Guide
| Grade | Machining Condition | Best For |
|---|---|---|
| YBC151 | Stable / High Speed | Finishing (Wear Resistance) |
| YBC251 | General Purpose | Semi-Finish (Balanced) |
Customer Reviews
"Reliable Workhorse"
"Used YBC251 in our shop in the USA. It handles various steel grades without needing to change inserts constantly. Very cost-effective."
— James P., USA
"Best Chip Evacuation"
"The -53 chipbreaker is a lifesaver in Germany for long-turning tasks. No more bird-nesting issues."
— Dieter H., Germany
"Stable Part Finishes"
"Running these in Italy for medium production. Tolerances are held perfectlypart after part."
— Paolo V., Italy
"Great for Interrupted Cuts"
"Shocked by the toughness in Japan. Even with slight vibrations, the edge doesn't crack easily."
— Kenji S., Japan
Frequently Asked Questions
Q: What is the main benefit of the -53 chipbreaker?
A: It is designed specifically for semi-finishing of steel, providing excellent chip breaking at medium feed rates and preventing chip welding.
Q: Is this insert suitable for dry machining?
A: Yes, the CVD coating on YBC251 is highly heat-resistant, but using coolant will generally extend tool life significantly.
Q: Can I use this for boring small holes?
A: Absolutely, provided your boring bar uses a CCMT 09T3 pocket (minimum bore diameter depends on the bar holder).
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.