Jim sez: ..."and use WD-40 for the cutting fluid ..."

I respectively question the logic of using WD-40 as a cutting fluid. Why
WD-40? Yeah, I know it is kerosene based but why not use just plain
kerosene? I know kerosene is a recommended cutting fluid for aluminum. Or
better yet, "Liquid Wrench", also kero-based - it comes in a spray can
version also. Are you sure you aren't confusing the washing action (chip
removal ?) of spray-can WD-40 with cutting fluid efficiency?

Bob Swinney

"jim rozen" wrote in message
...
In article , Ryan says...

I have a task which requires boring four 4" holes in .750 plate aluminum,

Holesaw. Get the best bi-metal blade you can, mount it up
in a bridgeport, Retract feed frequently to blow out chips. You can
cut from both sides, just pick up the pilot hole from
the first side.

Jim

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