How do I safely make a hole of around 32mm in my astra cast (acrylic, I think) sink unit?
I need to mount an air switch for a waste disposal unit.
Thanks in anticipation......
Making a hole in Astra Cast sink unit
Nov 11, 2013
2 Replies
Carefully.
My plastic bath came without tap holes. I stuck masking tape over where the holes should be, measured and marked them about 3 or 4 times :o) then drilled small pilot holes (& measured again), then drilled the full size holes (IIRC, with a spade bit, run very, very slowly.)
I cut a hole for a filtered water tap in a Rok composite kitchen sink with one of these
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and associated arbor
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they are not cheap but given the cost of the sink I thought it was worth it. The composite is extremely tough and it will take a while to get through it.
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