Square Positive Turning Inserts
SCMT09T304 carbide insert and SCMT09T308 carbide insert are manufactured from cemented carbide material to provide wear resistance and stable cutting performance during metal turning operations. Moreover, these SCMT carbide turning inserts feature a precision-designed cutting edge and compact square geometry, so they support accurate machining and consistent surface finishes.
Furthermore, these indexable carbide inserts work with CNC lathes and turning centers for processing carbon steel, alloy steel, stainless steel, and cast iron. Therefore, SCMT09T304 turning insert and SCMT09T308 turning insert fit automotive parts, mechanical components, mold manufacturing, and general machining applications, while CNC turning inserts help manufacturers achieve reliable production results.
7° Clearance Square Inserts Specifications:

| Model | L | IC | S | d | R |
| SCMT09T304 | 9.525 | 9.525 | 3.97 | 4.4 | 0.4 |
| SCMT09T308 | 9.525 | 9.525 | 3.97 | 4.4 | 0.8 |
| SCMT120404 | 9.525 | 9.525 | 4.76 | 5.5 | 0.4 |
| SCMT120408 | 12.7 | 9.525 | 4.76 | 5.5 | 0.8 |
| SCMT120412 | 12.7 | 9.525 | 4.76 | 5.5 | 1.2 |
Notes: We offer full customization for all specs. For more information, please contact us at any time.
Bwin Grade for Carbide Inserts:
| Grade | Coating | Color | Workpiece material | Application |
| BP020 | CVD | Yellow | P10-P20 | Ideal for semi-finishing through to finishing of mild steel. |
| BP025 | CVD | Black | P25-P35 | Ideal for machining quenched and tempered steel |
| BP030 | CVD | Yellow | P25-P35 | BP030 is the advanced upgrade of BP020; specifically engineered for interrupted steel cutting. |
| BP050 | CVD | Two-color | P35-P45 | Optimized for turning various steels; the premier choice for superior wear resistance. |
| BP070 | CVD | Colorful | P15-P40
H10-H30 |
Suitable for hardened steel and difficult-to-machine materials. |
| BM035 | PVD | Dark Purple | M10-M30 | Excels in stainless semi-finishing and grooving; the premier grade for steel and stainless milling/drilling. |
| BM055 | PVD | Purple Gold | M15-M35 | The premier grade for versatile steel and stainless milling and drilling. |
| BM085 | PVD | Colorful | M10-M30 S15-S30 H10-H25 |
Ideal for difficult-to-machine materials such as nickel and chromium alloys, etc. |
| BN01 | Uncoated | Silver | Designed for processing non-ferrous metals, including copper and aluminum alloys. | |
| BT015 | PVD | Dark Gray | P20-P30 K10-K30 |
Optimized for light milling of both steel and cast iron. |
| BT030 | PVD | Light Purple | P10-P25 M15-M35 |
Ideal for continuous turning and threading of steel and stainless steel. |
| BT065 | PVD | Golden Yellow | P10-P20 | Excels in steel semi-finishing and grooving; the premier grade for steel milling and drilling. |
| BK115 | CVD | Black | K15-K30 | The ideal grade for cast iron semi-finishing and lightly interrupted cutting. |
| BC060 | Uncoated | Silver | P30-P40 | Suitable for processing various steel components and cast iron. |
| BC075 | Uncoated | Black | P40-P50 | Engineered for high-performance machining of hardened steel and cast iron. |
| BC090 | Uncoated | Yellow | P40-P50 | Optimized for precision machining of hardened steel and cast iron. |
Notes: As a matter of fact, Bwin delivers a comprehensive range of high-quality CNC spare parts. To be specific, our catalog covers carbide end mills, carbide inserts, turning bar tools, face milling tools, hole drilling tools, thread tapping tools, carbide burrs, tool holders, machine vises, live centers, chucks, CNC angle heads, carbide saw blades, and clamping kits. What’s more, we also stock brand-name carbide inserts from trusted manufacturers.
Beyond that, we take parts support to the next level. In other words, we don’t just sell components — we actively keep your machines humming and your business moving forward. Above all, every service we deliver aims to minimize your downtime and maximize your output.
