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Peter wrote:
Wanted: an 1/8 inch or so hole in the porcelain of a bog cistern.
I've used this tile-hole cutter drill-bit on tiles before with no problems.
But on cistern porcelain got through the glaze ok but no further in than
about 1/8 inch deep.
Drilling porcelain is addressed in the DIY FAQ
http://www.internode.co.uk/diyfaq/drillfaq.htm
But on this usenet group I posed the same question (4 Aug 2005
16:02:47 +0100) and was recommended to use an ultrasonic drilling
machine. It's like an pillar drill SDS but with the bit driven at
multi-khz frequencies and plenty high impact force.
See: http://www.sonicmill.com/machine.asp
I am presently seeking inspiration as to how to track down a local
machine shop with one of these useful machines. I tried glass/masonry
companies but drew a blank.
Let me know how yo get on.
www.orc.soton.ac.uk have got one!
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