Hey guys,

I was wondering if anyone had experience with the Chinese BT30 "spindle cartridge". It's really just the first thing that comes up when you search "BT30 Spindle" on aliexpress. Anybody got some feedback? They claim .0003 of runout and for ~$300 it seems like a good deal. Here's an example:

https://www.aliexpress.com/item/BT30...AbTest=ae803_3

Thanks,
Dan

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