How to Drill a Hole on Water Sink

3keego Step Drills are drill bits EASY to DRILL and ENLARGE a wide range of holes on thin sheet metal.
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[@WillN2Go1]

I just drilled a third hole through a very thick 3/16" (5mm) Kraus stainless steel sink (very different from the sink in this video) I used a tungsten carbide tipped hole saw in a 12v Bosch drill/driver. Used water for cooling. Took a little effort but it drilled out cleanly. To remove any burrs I used an 8" half round 'basterd cut' (fine) file. Thought I was going to have to go over it with sandpaper, but it's smooth enough. I used a 1-3/8" (35mm) hole saw. Hope this helps. It answers the questions I had and it worked well.

[@sagarjoshi5468]

Premium quality Step drill gives best results in SS304 also

[@jmw611]

Why post the vid if I can't buy the tool???