Mitsubishi MLG1015L UTI20T Grooving Insert | MMC Japan
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MLG1015L UTI20T
Mitsubishi Materials | Small-Part Machining & Precision Grooving
The Mitsubishi MLG1015L UTI20T is a specialized precision insert designed for grooving and threading in small-part machining. Engineered for use with the SMG holder series, the MLG insert provides a stable, high-accuracy cutting edge. The UTI20T grade is a legendary uncoated tungsten carbide that offers superior edge sharpness and thermal conductivity, making it the premier choice for non-ferrous metals, aluminum, and cast iron.
Technical Specifications
| ISO/Metric Designation | MLG1015L |
|---|---|
| Groove Width (CW) | 1.5 mm (.0591") |
| Hand of Tool | Left Hand (L) |
| Grade / Composition | UTI20T (Uncoated Tungsten Carbide) |
UTI20T Uncoated Carbide
The UTI20T grade is an uncoated K-type carbide. Its micro-structure is optimized for anti-adhesion properties, which is essential when machining "sticky" materials like aluminum or copper. By eliminating the coating, the edge remains extremely sharp, reducing cutting pressure and preventing the smearing of material on the workpiece surface.
Precision Grooving Geometry
The MLG series is dedicated to precision grooving. This geometry ensures high chip control even at low feed rates. Its slim profile allows for access in tight spaces, making it a favorite for automatic lathe machining and medical or electronic component manufacturing.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed Rate ($f$) |
|---|---|---|
| Aluminum Alloy / Copper | 100 - 300 m/min | 0.02 - 0.10 mm/rev |
| Cast Iron (FC/FCD) | 60 - 120 m/min | 0.03 - 0.12 mm/rev |
SMG HOLDER COMPATIBILITY
This MLG insert is designed for Mitsubishi SMG series external grooving holders.
Shop SMG Holders →Metric vs. Inch Cross-Reference
| Feature | Metric (ISO) | Inch (ANSI) |
|---|---|---|
| Groove Width | 1.5 mm | .059" |
| Shank Fit | 10 mm Series | ~0.394" |
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.