[Public-List] drilling SS

[Lawrence Morris]

Roger

I agree with mike. Low RPM and Slow Feed. Most importantly is the low rpm. Additionally the machine oil reduces heat. 

Remember. Heating and cooling hardens the stainless steel. So when you start drilling a hole don't stop. It will be much more difficult to complete the hole. 

A drill press is ideal for this job. 

Sent from my iPhone

Larry Morris

On Nov 3, 2010, at 16:51, "Roger L. Kingsland" <r.kingsland at ksba.com> wrote:

> Hi Folks,
> 
> About to start drilling many 3/16" to 1/4" holes in 1/4" stainless steel
> (316) plates.  Can any machinist types out there please recommend drill bit
> type, lubricant, drill press rotation speed, anything else?
> 
> Thanks very much,
> 
> Roger 148
> 
> 
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