Countersink cutter question

[Charles in SC]

Is it ok to countersink steel with the cutter used for aluminum? If so, is d done differently? Maybe turn slower and use lube?

[Mike H]

You got it. It will work well if you keep the speed down and the cutter relatively cool, but it will still dull much faster than cutting 2024T3.

[wjb]

I put the cutter in my trusty DeWalt set to "low" and leave the air tools aside for cutting steel. A bit 'o Boelube works nicely.