I want to install a sink soap dispenser but the existing hole in my sink is too small. From what I've found the universal diameter of the threaded piece that inserts into the hols is 1 inch. My hols is closer to 3/4 inch.
So, how can I increase the size of an existing metal hole in kitchen sink?
My research so far has led me to using a piece of clamped 2×4 as a guide for a drill bit but I cannot clamp the wood to the sink.
Any ideas?
How to increase the size of an existing metal hole in kitchen sink
sinksoap-dispenser
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Best Answer
You should be able to use a knockout punch.
These are inserted through a pre existing smaller hole, and can cut sheet metal including stainless steel. They come in a range of sizes.