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" |
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This Mitsubishi insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.