3800 Good Aluminum Cutting Dremel Bit?

[98 TGP TOY]

Hey guys, I have been trying to cut through a couple mm's of 3/8 in aluminum for a project. I have tried a metal porting bit from lowes, sanding bits from lowes, and a metal cutting bit from lowes. All of these work, but extremely slow. I will need to buy about 200 sanding bits to finish the project. Probably like 50 of the porting bits, and who knows for those cutting bits. I am sort of new to dremels, so I was wondering what other options I have if any. I need a bit that will chew through the aluminum quickly. I need to get this project done soon. Thanx for the help.

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[imported_Ron Vogel]

There isn't really anything that's going to work well with a dremel. Aluminum needs to be cut at a slower speed, and you need more torque that the dremel has for that to be effective. I get these bits from McMaster that are awesome for cutting aluminum, and work best on just a regular drill. They will last forever, but they are $20-40 a piece. It' cuts through like it was butter.

 

[98 TGP TOY]

Well I have a drill also, so where can I find these bits? Online or at a local retailer? Thanx.

 

[98 TGP TOY]

ttt

 

[imported_Ron Vogel]

The only place I've found the professional stuff is at McMaster.

 

[98 TGP TOY]

Hey ron, I have been looking over their site for a lil now with no luck. What section is it in....or do you have a link. Thanx for the help.

 

[imported_Ron Vogel]

Their site is not linkable to products, but its in the tools section. I believe it's under machine shop stuff. I got the titanium nitrate coated cutter with 4 flutes. They have a very handy guide up for bit selection. I'll look it up and find the sectiuon then repost.

 

[imported_Ron Vogel]

Three Flute- For aluminum and nonferrous alloys. Mill diameter tolerance is +.000", -.003". Choose TiN-coated or TiCN-coated end mills.
Four Flute- For medium- to high-tensile steels, stainless steels, and high temperature alloys. Mill diameter tolerance is +.0000", -.0035". Choose TiN-coated or TiALN-coated end mills.

I guess I used the 3 flute, they call it an end mill, and it's in the parts finishing section. I used a 1/4" shank, so it could also be used on a porting tool. They're expensive, but they will last a very long time if not abused. I abused mine and it lasted about 20 min. By abuse I mean, using it on the wrong type of material and pushing it too hard. They are made of a hardened material and are brittle. It cut through aluminum like butter, but sucked on removing thick steel welds.

 

[98 TGP TOY]

Ah...im usually better at finding things. The closest Im getting is this.

http://www.mcmaster.com/asp/DisplCtlgPage....MMainWidth=804#.


If you click on the part number then you can link it. Thanx for the help.

 

[imported_Ron Vogel]

Sorry, it's under milling cutters/roughing end mills...

 

[98 TGP TOY]

Oh Ok, I think I found them. Thanx for the help Ron.