CPM 145 drill speed

[JTknives]

Im going to be drilling a lot of 1" holes in my sheet of Cpm 154. whats a good rpm to do this with. i have 2 bits im going to try, one is just a HHS drill and the other is a carbide tiped hole saw. these will be chucked up it my 3hp drill press. thanks

 

[fitzo]

http://www.fairburyfastener.com/holesaw_speed_chart.htm You can probably go faster with carbide, but I wouldn't have it screaming.

 

[Fellhoelter]

I start with speeds of 40-50 feet per minute with HSS, 125 FPM with Carbide, and adjust from there.

This works out to 150 - 190 rpm on the HSS
and 475 - 500 on the Carbide