Drill Aluminum

[John Weber]

I need to drill about a 2" hole in a 1-1/4" 6061 aluminum plate, will a bi-metal hole saw work? If so, any ideas as to speed, oil, etc...

Thanks - John

[Don Abele]

John, I've drilled through aluminum and thin soft steel using a bi-metal hole saw (I have a whole collection of them). Slow speed and some lubricating oil helps.

Be well,

Doc

[Jamie Buxton]

You probably know this, but aluminum can grab a drill bit or hole saw. With a 2" hole saw, the drill will have plenty of leverage to fling you around. Brace yourself well, or use a drill press and clamp the aluminum well to the table.

[John Weber]

Thanks guys, I'll use a drill press on slow speed and clamp everthing up.

John

[Bob Lasley]

John,

Denatured alcohol makes a great coolant for drilling aluminum.

Bob