boring long holes

dimanche 14 décembre 2014

I'm turning a Newel post for a staircase, and need to run wiring up the centre to a light switch that will be mounted near the top. I'm doing the post in 3 sections, but the centre section will be about 600mm long.

I know people do these long holes as I have a lamp shade in my lounge room that is quite thin but some how avoided the hole drifting off centre and exiting out the side half way.



How is it done? Spade bit on an extension? Forstner bit?



The post will probably be about 65mm+ at its narrowest, and as 5 wires need to go up to a 3 rocker switch, the hole needs to be about 28mm diameter.




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