Chinese 300W DC spindle - is the spindle shaft grounded?

[HankMcSpank]

Regarding the shaft earth you could just put a temporary ground to it with a crock clip as it will not be spinning when probing.. C.

yes I realise that....the point is I want to avoid putting a temporary croc clip on it! It's how I used to do it, but it's a chore & I used to forget to either put the croc clip on (tool breaks when descending) or forget to remove it ....(croc clip gets thrown off!)

I've a feeling that these Chinese 300w spindles are pretty much the same as the Zen Toolworks spindle...and I know that the shaft is not grounded those (necessitating their owners to put in a workaround suck as spring steel pressing on the top of the exposed shaft ...Zen Toolworks LLC • View topic - Auto Zero your tool bit)