Drills for Stainless Steel

Started by handi2, March 21, 2019, 08:15:52 PM

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handi2

March 21, 2019, 08:15:52 PM
I know it's on here somewhere but I'm lazy.

Which are the best drills for SS and where to buy?

Thanks,

Keith
OCD Reel Service & Repair
Gulf Breeze, FL

foakes

#1
March 21, 2019, 08:39:37 PM Last Edit: March 21, 2019, 08:51:32 PM by foakes
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RowdyW

#2
March 21, 2019, 09:15:19 PM Last Edit: March 21, 2019, 09:20:12 PM by RowdyW
Keith, for SS use Cobalt drills & run them at slow speeds & firm pressure. They will stay sharper longer & can take the heat better. It's probably best to buy individual drills as you need them unless you are drilling a lot of SS.       Rudy

reel man

#3
March 21, 2019, 11:12:22 PM
Ain't that the truth, Rudy. Was given 2 complete drill indexes and 90% have never been in a chuck.

Reel 224

#4
March 22, 2019, 12:27:04 AM
Keith: I get Machine length bits at McMasters https://www.mcmaster.com/drill-bits. These bits will last.

Joe 
"I don't know the key to success,but the key to failure is trying to please everyone."

Makule

#6
March 22, 2019, 05:40:08 AM
What RowdyW says is correct.  Cobalt, and if you know it is not interrupted cuts, and you don't mind the cost, carbide.  If you let the drill slide over the SS, it will work harden and the surface will become very hard to penetrate so it's necessary to really bear down on it.
I used to be in a constant state of improvement.  Now I'm in a constant state of renovation.

Alto Mare

#7
March 22, 2019, 10:42:00 AM
Quote from: Three se7ens on March 22, 2019, 02:05:04 AM
https://alantani.com/index.php?topic=17892.0

This link above is worth reading.

Adam knows is stuff and we're very lucky to have him here with us.

Sal
Forget about all the reasons why something may not work. You only need to find one good reason why it will.

Reel 224

#8
March 22, 2019, 02:19:25 PM
Not trying to play, Can you top this. But I work with Stainless Steel most every day. Those bits I buy have never failed in ss round stock deep cuts and I haven't had to dress up those bits once. MHO

Joe
"I don't know the key to success,but the key to failure is trying to please everyone."

handi2

#9
April 07, 2019, 10:08:15 PM
A big thanks to everyone. When i was still working I drilled SS occasionally. I have bought the expensive multi bit sets and 60% of them have not been used. I think I will buy individual ones from McMaster. I will never need the larger bits.

Thanks,

Keith
OCD Reel Service & Repair
Gulf Breeze, FL

Tiddlerbasher

#10
April 08, 2019, 12:46:22 AM
Keith - I echo your comments - but just buy the bits you need, not a whole set - and make sure they are HSS CO (Cobalt) or Carbide.
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