Mitsubishi MLG1415L UTI20T Grooving Insert | MMC Japan
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MLG1415L UTI20T
Mitsubishi Materials | Precision Small-Part Grooving & Threading
The Mitsubishi MLG1415L UTI20T is a specialized precision grooving insert engineered for small-part machining on automatic lathes and CNC turning centers. Designed to fit the SMG series tool holders, this insert provides a stable and highly accurate 1.5mm groove width. Utilizing the legendary UTI20T uncoated carbide grade, it offers an exceptionally sharp cutting edge, making it the premier choice for machining aluminum alloys, brass, copper, and cast iron where surface finish and dimensional precision are critical.
Technical Specifications
| ISO Designation (Metric) | MLG1415L |
|---|---|
| Groove Width (CW) | 1.5 mm (.0591") |
| Hand of Tool | Left Hand (L) |
| Cutting Grade | UTI20T (Uncoated K-Type Carbide) |
| Compatibility | Mitsubishi SMG Series Holders |
UTI20T Uncoated Sharpness
The UTI20T grade is an uncoated tungsten carbide specifically tuned for anti-adhesion. Machining non-ferrous metals often causes "sticky" chips that weld to coated tools; UTI20T prevents this, ensuring built-up edge (BUE) resistance and maintaining a pristine, sharp edge for longer cycles in aluminum and copper.
MLG Precision Geometry
The MLG geometry is optimized for small-part grooving. It provides excellent chip control even at the low feed rates required for precision components. Its design minimizes cutting forces, which prevents deflection in the small-diameter workpieces typically processed with 14mm-shank holders.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed Rate ($f$) |
|---|---|---|
| Aluminum Alloy / Copper | 120 - 350 m/min | 0.02 - 0.12 mm/rev |
| Cast Iron (FC/FCD) | 70 - 130 m/min | 0.03 - 0.15 mm/rev |
| Plastic / Non-Metal | 100 - 300 m/min | 0.05 - 0.20 mm/rev |
COMPATIBLE SMG HOLDERS
This MLG14 series insert is designed specifically for Mitsubishi SMG external grooving holders.
Shop SMG Series Holders →Metric vs. Inch Cross-Reference
| Feature | ISO: MLG1415L | ANSI Equivalent |
|---|---|---|
| Groove Width | 1.5 mm | .059" |
| Shank Connection | 14 mm System | ~.551" |
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.