Mitsubishi MLG2030L UTi20T Grooving Insert | MMC Japan
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MLG2030L UTi20T
Mitsubishi Materials | Precision 3.0mm External Grooving Insert
The Mitsubishi MLG2030L UTi20T is a high-precision indexable grooving insert specifically engineered for small-part machining and precision turning. Designed for the SMG series tool holders, this insert provides a stable 3.0mm groove width with exceptional surface finish quality. Featuring the legendary UTi20T uncoated carbide grade, it offers an "up-sharp" edge that is the industry standard for machining non-ferrous metals such as aluminum, copper, and brass.
Technical Specifications
| ISO Designation (Metric) | MLG2030L |
|---|---|
| Groove Width (CW) | 3.0 mm (.1181") |
| Hand of Tool | Left Hand (L) |
| Carbide Grade | UTi20T (Uncoated K-Type) |
UTi20T Uncoated Carbide
The UTi20T grade is a classic uncoated tungsten carbide. It is renowned for its sharp cutting edge and high thermal conductivity. It effectively prevents built-up edge (BUE) when grooving aluminum or copper alloys, ensuring dimensional accuracy and a mirror-like surface finish.
MLG Precision Geometry
The MLG geometry is optimized for small-part precision grooving. Its sharp rake angle ensures low cutting resistance, which is critical for reducing vibration in small-diameter workpieces. This insert is ideal for CNC automatic lathe operations where precision is paramount.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed Rate ($f$) |
|---|---|---|
| Aluminum Alloy / Copper | 150 - 350 m/min | 0.05 - 0.20 mm/rev |
| Cast Iron (Gray/Ductile) | 80 - 150 m/min | 0.05 - 0.18 mm/rev |
HOLDER COMPATIBILITY
This MLG20 series insert fits all Mitsubishi SMG series external grooving holders.
Shop SMG Holders →Metric vs. Inch Comparison
| Feature | ISO: MLG2030L | ANSI Equivalent |
|---|---|---|
| Groove Width | 3.0 mm | .118" |
| System Shank | 20 mm Series | ~.787" Shank Fit |
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.