Author: Chris P
Date: 2019-02-19 00:33
I use anything from 0.8mm to 1.0mm and a similar diameter needle spring or the nearest imperial size that's a tight fit.
Once you mount the pin in your bench motor chuck, use a countersink to centre drill the head, then use a twist drill to drill all the way through held in a pin vice or with pliers which will drill through and keep centred. You can see the drill going through the pin as it's translucent.
If it does wander off a bit but still remains within the pin, then that'll be fine.
Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.
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