[braveviper]

Hey, looking to make some fluke balls in an old blank do-it mold.I figured I needed a spherical ball that can cut aluminum.Anyone have any ideas?

[dampeoples]

I'm pretty sure there are some Dremel bits that are this shape, they'll be small, though

[braveviper]

Dremmel yeah too small...I need like a 1 inch diameter ball.

[dampeoples]

I've got some bits kind of like that, i'm not sure what they are for, but I got them at harbor freight tools, they surely won't last long, though

[jerkbait]

Rotary files come in that size. Mcmaster-Carr has them. Let me know if you cant find one and I wll shoot you a link.
Jerk

[Eastendlu]

You can use a router bit the round ones use a drill press and make sure that you secure the mold down to the table correctly and use a slower rpm and don't push to hard on it.Also set some kind of a stop for the depth if you can.

[braveviper]

router bits will cut aluminum?

[Eastendlu]

Yes specially the carbide tip ones.I think the ones your looking for are called box core bits.

[braveviper]

A sphere shape box core? Ok will look thanks.

[pete s.]

they make aluminum die grinder bits(and they are different). something that helps. cutting oil for aluminum, really helps cleaning out the bits while grinding. bet del can tell where to purchase the oil.