No, all those drills are too big, too noisy, too wobbly, and simply no good for jewellery making.
What you need is the smaller Proxxon TBM220, Preferably with the addition of the optional three jaw chuck.
The speed is determined by moving the concealed belt onto different pullies. Mine is setup to run at its lowest speed for everything, and has been like that for more than twenty years.
https://www.axminstertools.com/proxx...h-drill-702060
You also need a block of wood under your piece to minimise spinning when drilling through, or use a drill vice. Dennis
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