Need help finding a router bit

[milwaukeephil]

Hi All
Can anybody give me a name or tell me where I can buy a bit like this?
I'm working on a new product for my company and one of the components is vac formed. I need to have a flange around the edge, just like in the photo below, of about 3/8" (these are screenshots from a youtube video).

My searches turn up flush cutting bits with a bearing on the end, but none with a larger diameter bearing than the cutter.

Thanks!

 

[lardy1]

We called them oversized bits when I worked in the cabinet shop. Some bits can accept different sized bearings.

 

[manwithtools]

Yes, you can buy bearings of many diameters. You will likely have to buy the bit and an oversize bearing separately. Try Whiteside or CMT. Look for a 1/4" flush trim bit and then a 1" diameter bearing. Or a 3/8" and a 1-1/8" bearing".

 

[PCustoms]

Search

Infinity Cutting Tools

www.infinitytools.com

You can also search offset pattern or offset flush trim bits

 

[PCustoms]

Delete.

Internet glitching double post.

 

[bob15]

Overhang trim router bits: https://www.whitesiderouterbits.com/collections/overhang-trim-bits

 

[milwaukeephil]

Guys, thanks for all the help. I have a lot of new info to research.
This place is awesome. I'm smarter now then when I woke up this morning.

 

[PCustoms]

I'm smarter now then when I woke up this morning.

Successful day!

I'd find exactly what you want, but Comcast has an outage and my cell barely gets data in the house.

I did just go down and dig though my random bits drawer and put a 3/4" bearing on a 1/2" straight cut, can't upload pic though. I've built some weird combo over the years for similar tasks (composite trimming), you've just got to find who has the right combo. My typical go to was Whiteside

 

[PCustoms]

Also just remembered another trick to get larger offsets. Get a bit with a 1/2" OD guide bearing, and install a "standard" 1/2" ID bearing.

In my cheaper days I've made a lot of custom square guides out of barstock using this method.

 

[milwaukeephil]

Also just remembered another trick to get larger offsets. Get a bit with a 1/2" OD guide bearing, and install a "standard" 1/2" ID bearing.

In my cheaper days I've made a lot of custom square guides out of barstock using this method.

Smart. You're talking about a press fit?

 

[milwaukeephil]

Another question. The parts are an 18" diameter circle and a 20x6" rectangle. Will a larger OD cutter work faster or should I keep it small?

 

[PCustoms]

Smart. You're talking about a press fit?

Ideally it would be a light press, but depending on the tolerances ( you don't need expensive precision bearings for guides) retaining compound should be good enough.

 

[PCustoms]

Another question. The parts are an 18" diameter circle and a 20x6" rectangle. Will a larger OD cutter work faster or should I keep it small?

How thick is the material?

Generally a smaller diameter will cut faster, but it's a balance of rpm and feedrate, which is going to tie back to stiffness of the bit and router power.

Also, are you cutting those in the form still? If so, can you make the offset into the form, and then just use a flush trim?

 

[The Cobbler]

larger diameter bit will take off more material = slower cut

 

[milwaukeephil]

How thick is the material?

Generally a smaller diameter will cut faster, but it's a balance of rpm and feedrate, which is going to tie back to stiffness of the bit and router power.

Also, are you cutting those in the form still? If so, can you make the offer into the form, and then just use a flush trim?

Not sure on thickness yet... less than 1/8".

Not cutting them in the form. I'm gonna have a router table setup right next to the former.