1.5" drill bit for Stainless Steel?

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farmerjohn1324

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I'm trying to drill a 1.5" hole for a faucet on a Reverse Osmosis system.

Do they make 1.5" bits that will go through Stainless Steel?
 

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These are for knockouts in electrical work but would pop right thru a sink I think. They will cut #10 gage steel. That’s about 1/8 thick.


https://www.amazon.com/dp/B002NQO8RA/?tag=skimlinks_replacement-20


A good quality hole saw made for cutting metal will also work or the step drill Neal posted above.


DO NOT use that wood bit you posted the photo of.
 
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I've never seen the need for a 1.5" hole for a R/O system. Double check the directions.
 
bud16415 said:
These are for knockouts in electrical work but would pop right thru a sink I think. They will cut #10 gage steel. That’s about 1/8 thick.


https://www.amazon.com/dp/B002NQO8RA/?tag=skimlinks_replacement-20


A good quality hole saw made for cutting metal will also work or the step drill Neal posted above.


DO NOT use that wood bit you posted the photo of.
Click to expand...

For hole saws that cut metal, this is all I could find.

https://m.grainger.com/mobile/produ...al-44YX95?breadcrumbCatId=5167&fc=MWP2IDP2PCP

Only concern is the max cutting depth is only 1/4". Not sure how thick a sink is.

Edit: Been reading about SS sinks. 1/4" should be more than enough.
 
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I've never needed a 1.5" hole for a regular kitchen faucet let alone an R.O. Usually 1 1/4" is more then sufficient. Do me and yourself a big solid and size the hole up with whatever you decide to make the hole with. You can always make the hole bigger but smaller is more difficult.
 
Puddlesx5 said:
I've never needed a 1.5" hole for a regular kitchen faucet let alone an R.O. Usually 1 1/4" is more then sufficient. Do me and yourself a big solid and size the hole up with whatever you decide to make the hole with. You can always make the hole bigger but smaller is more difficult.
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Where is the base the the faucet? You are missing a part. The base for most RO faucet have a wing nut to secure the base to the sink or counter. I think you are measuring the wtong part.
 
nealtw said:
You only have to measure the bit that would go thru the hole.
Click to expand...

Puddlesx5 is pointing out that something don't look right in that picture. The part that goes through the hole would be expected to have an external thread for a plastic nut. Photo does not show side very well, but it don't look threaded.
 
I agree something is wrong with that picture!! like steve123 said there should be some sort of external threads for a nut to screw on.
 
More on the Reverse Osmosis system. When trying to plug in the drain tubes, one of the connections broke off. Any idea how to get it back on securely?
 

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I drilled a hole in a SS sink using a round hole saw (Rigid). It took awhile. Use cutting oil. Go slow. Prepare for it to catch when you finally go through. I needed a hole for a hot water tap.
 
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