Mitsubishi UH6400: the maker lists MC6135 as its successor
Mitsubishi Materials puts Mitsubishi MC6135 against UH6400 in its own catalogue material. We publish the pair only because the maker published it; the source is below.
What the maker's document shows
UH6400 → MC6135 · ISO P turning (CVD)
The maker's tool lists insert CNMM160612-HM in UH6400 under "Discontinued Product" and CNMM160612-HM in MC6135 as its "Successor Product".
Source: Mitsubishi Materials, Successor Product Search (mmc-carbide.com), record for one insert item. Open the maker's source →
The maker answers per insert item, not per grade: other inserts in the old grade may point to a different grade or to none.
Text as extracted from the maker's source (columns run together)
Discontinued Product Description Grade CNMM160612-HM UH6400 Recommended Product Successor Product Grade Note CNMM160612-HM MC6135 -
What this does and does not mean
The maker marks the old UH6400 items it lists as discontinued, phased out or obsolete and names items in MC6135 as their replacement. That record is per insert: your exact UH6400 insert may point to a different grade or have no successor.
Before you switch:
- Check that your exact insert designation and chipbreaker are offered in MC6135 in the maker's current catalogue.
- Start from the maker's recommended cutting speed for MC6135, not the numbers you ran with UH6400.
- Run both grades until the edge is worn out on the same part and compare parts per edge. One part is not a result.
Other Mitsubishi successor pairs
MC5005 → MC5105 · MC5015 → MC5115 · MC6015 → MC6115 · MC6025 → MC6135 · MC6035 → MC6135 · MC7025 → MC7125 · MP7035 → MP7135 · MT9005 → MP9005 · MT9015 → MP9015 · RT9010 → VP10RT · UC5105 → MC5105 · UC5115 → MC5115 · UE6020 → MC6125 · UE6035 → MC6135 · UE6105 → MC6115 · UE6110 → MC6115 · VP25N → MP3025 · VP45N → MP3025
Tell the advisor your insert, material and operation. It answers brand-neutral, including options from other makers. To check a whole tool list for older grades, use the free coverage check.