Dremel bit to cut case window?

[Slickone]

Will this 9903 bit work well for cutting out panels for case windows? Along with this attachment, and somehow guide it along something straight (too difficult?). Or does a dremel cut off wheel work better?

 

[beatle]

I've never used a "cutter" bit to cut holes in my cases, always a reinforced cut-off wheel. If you do decide to use a cutter bit, let us know how it works.

 

[Slickone]

Whould that be the Diamond Wheel here?

 

[techfuzz]

Originally posted by: beatle
I've never used a "cutter" bit to cut holes in my cases, always a reinforced cut-off wheel. If you do decide to use a cutter bit, let us know how it works.

I with beatle, I've used the reinforced cut-off wheels to do my cutting on regular steel cases. Aluminum or other cases might required something a bit different. I see no problem using the that tungston bit, it might be a little hard to control when going in straight lines, but for curves it would probably be perfect. I have that attachment that you listed, it came with my dremel when I bought it; unfortunately, I haven't found a valid use for it yet.

techfuzz

 

[CubicZirconia]

I'd stick with reinforced cutoff wheels, they've always worked best for me.

 

[Slickone]

Any pics of the reinforced wheel? I guess it's not the diamond wheel I asked about then?

 

[CubicZirconia]

Originally posted by: Slickone
Any pics of the reinforced wheel? I guess it's not the diamond wheel I asked about then?

On the page you linked to there is a section called "cut off wheels." One of those is the reinforced cut-off wheel. Any place that sells dremel accesories should have them, they will be plainly labeled "reinforced cutoff wheels" right on the package. They should work well. I'd also reccomend something like 430 on this page for sanding after you are finished.

That's the combination I used for cutting my blowhole, worked out great.

 

[Slickone]

Turns out I have 1 1/2 of those already. How many would one case require?

 

[syberscott]

I have done several windows in steel cases and I always use the 420 HD cutoff off wheel. It really helps to have the flex shaft because these wheels have a small diameter and you want to keep the wheel perpendicular to the work. For finishing the sharp edges I just use some sandpaper and elbow grease.
The really nice thing about the cutoff wheels is that as you cut through it also sands the edges nicely, so really all you have to do is sand off the slag when you're finished.
One case requires about 2-4 disks depending on the speed you go. Have 6 on hand incase you break some (you probably will).
***AND WEAR EYE PROTECTION***... when these disks break they shatter and fly off in all directions.

 

[Slickone]

If the 420's are what I think they are, they're very brittle, and yes, will break and shatter easily. The 426 reinforced don't shatter, they just wear down to nothing. Should take less of the 426 vs. the 420.

 

[syberscott]

Originally posted by: Slickone
If the 420's are what I think they are, they're very brittle, and yes, will break and shatter easily. The 426 reinforced don't shatter, they just wear down to nothing. Should take less of the 426 vs. the 420.

I think the 426 is wider, so there would be an increased slag.
Also, the 426 has a larger diameter, so tight curves would be harder. All the cases I did had curves and the smaller diameter of the 420's worked well.

 

[Slickone]

Good points. I just didn't think the 420's would handle cutting so much metal that thick. May try it.