Mitsubishi GPMT070204-U1 UP20M Carbide Insert | Genuine MMC Japan
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GPMT070204-U1 UP20M
Mitsubishi Materials | Multi-Purpose Turning & Copying Specialist
The Mitsubishi GPMT070204-U1 UP20M is a precision-engineered parallelogram turning insert designed for versatility. Featuring the high-performance UP20M PVD Miracle Coating, this insert is exceptionally effective for machining Stainless Steel (M) and Steel (P). The U1 chipbreaker is specialized for copying and light-to-medium turning, ensuring excellent chip control even in difficult-to-cut materials.
Technical Specifications
| ISO Designation (Metric) | GPMT070204-U1 |
|---|---|
| ANSI Designation (Inch) | GPMT 21.51-U1 |
| Material Grade | UP20M (PVD Miracle Coating) |
| Corner Radius | 0.4 mm (1/64") |
| Insert Type | Parallelogram 82° |
UP20M Grade Advantage
The UP20M grade utilizes Mitsubishi's proprietary PVD Miracle Coating technology. It provides superior adhesion and high resistance to built-up edge (BUE), making it the first choice for sticky materials like austenitic stainless steel and heat-resistant alloys.
U1 Chipbreaker Logic
The U1 Chipbreaker is optimized for copying and profiling. Its geometry facilitates smooth chip breaking at low-to-medium feed rates, preventing long tangled chips that could damage the workpiece surface finish.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed Rate ($f$) |
|---|---|---|
| Stainless Steel (304/316) | 80 - 150 m/min | 0.05 - 0.15 mm/rev |
| Carbon Steel / Alloy Steel | 100 - 180 m/min | 0.05 - 0.20 mm/rev |
COMPATIBLE TOOLING
This GPMT insert is typically used with Boring Bars or specialized Copying Tool Holders.
FIND COMPATIBLE HOLDERS →Metric (ISO) vs. Inch (ANSI) Reference
| Dimension | ISO: GPMT070204 | ANSI: GPMT 21.51 |
|---|---|---|
| Inscribed Circle (IC) | 6.35 mm | 1/4" |
| Thickness (S) | 2.38 mm | 3/32" |
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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.