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 |
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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.