How to drill 1mm diameter holes? My drills won't even hold the bit!

[NeverDie]

Trying to enlarge some holes on an incorrectly fab'd PCB. I have a 1mm diameter drlll bit, but it turns out none of my drills will hold it--their chucks have a more than 1mm diameter void when closed. I never knew until now, when the chips are down. So, for the future, what drills will hold small bits like this?

As a one-off, I held the bit with a pair of pliers and crudely rotated the PCB around it to drill the 3 holes, but it was awkward and I never want to have to do that again. As a one-off, it did work though.

[monte]

@NeverDie https://www.aliexpress.com/item/32738503593.html special bits, that has the same diameter of the tail side, and will fit the standard drill. Or you can buy a drill with small jaws, or just another chuck, that will fit your drill.
I am using dremel tool with a drill chuck bought separately https://www.dremel.com/us/en/p/4486-2615004486

[virtualmkr]

@monte Thank you for sharing, just ordered the bits.

[mfalkvidd]

A few turns of (Scotch) tape to make the drill bit fit might be good enough to beat the PCB rotation method.

[PeteKnight]

You need a Pin Vice (or vise if you're across the pond and want to butcher the Queen's King's English)...

https://www.ebay.co.uk/itm/143450664932?epid=2305158887&hash=item2166536fe4:g:g-AAAOSwnO1d2YjH&amdata=enc%3AAQAHAAAAoNgdTu9H35nxAzYb88y%2Bd%2BnDpgfsjI2QXCJzOGcO0bj4xAlrbUz9IScDEEydVAxUQ2Fv%2FQXkfPURAH3PWftlQIbAploXhvcmwP4%2F%2FY1YNgXeglqfwkTWyP%2BQkgvRuss8OI4OkverPgiUT%2BBftCZcFLqrm6LdeKgcz8uqo4pMxnLx4AtDgoQHTnSznUbSxLM4jDkUGLECVv%2Bqaptf8fgnWu0%3D|tkp%3ABk9SR8DLmJnqYA

Pete.