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" |