I want to make a round hole in some aluminum stock. The diameter woiuld be
about 1 1/2 inches. The siz is not critical it will just allow for the
pasasge of the feed lines for a faucet. The aluminum will be 1/8 in thick.
I have a table top drill press. Will a standard hardware level hole saw be
I think with that size circle the slowest speed would be right.
What about lubrication? Dry, water, oil or what?
I am trying to avoid a starting hole and saber saw or some other such way.
I use the bimetal hole saw blades from Milwaukee. They work great on
Aluminum and other soft metal. I spray the metal and blade with an oil
lubricant. Use the slowest speed.
The hole saws made for wood can be aggresive and will cut aluminum just be
You can use a hole saw mounted on a mandrel but be aware that
Aluminum is quite bad at galling the teeth. Wax stick lubricant
helps or some other lubricant.
An Irwin Speedbore or equal is available in 1 1/2" , is cheaper,
is a whole lot faster.
Keep the whole world singing . . . .
The hole cutters that use a bar and two HSS cutter bits work well for
If your drill press is like my cheapo DP,the slowest speed is 620 RPM,a bit
fast for large bits.
I do better using my 9.6V Makita cordless drill/driver.
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