For 20 to 25 ton machines that spend part of the day in rock or stony fill, the 9N4452 gives a narrow chisel point without going to a full rock duty body. It is a practical middle option when a standard tooth wears too fast but a heavy rock tooth would slow the cycle.
The point is heat treated through the section, so as it wears back it keeps opening the ground instead of turning into a blunt wedge.
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| Part number | 9N4452 |
| Machine class | 20-25 ton excavator |
| Tooth type | Rock chisel, pin-on |
| Material | Abrasion resistant alloy steel |
| Hardness | HRC 50-55 |
| Unit weight | 15.4 kg |
| Pin bore | 24 mm |
| 9N4452 / 6Y0359 | Chisel and standard teeth |
| 9J4203 / 1U3202RC | 300 class rock alternatives |
| 9W2451 / 3G5359 | 350 class rock tips |