Need 3/32" slotting bit w/ 1-1/2" diameter?

[cgallery]

What I'm trying to find is a 3/32" slot cutting router bit with a 1-1/2" diameter.

I've found lots of 3/32" slotting cutters, but they have a 1-7/8" diameter.

I've found slotting cutters that are 1-1/2" diameter, but they don't have 'em in 3/32".

Oh, and I need to be able to use bearings with it to limit the depth of cut.

[crokett]

Do you need a slot of a specific width? Are you cutting slots in the edge or the face of a board? Two ways I see it could be done with the 1 7/8ths:

If face, a temporary offset base added to the router that offsets the bit 1/8" so the depth of the slot is actually 1 1/2".

If edge a fence to do the same thing.

[cgallery]

Do you need a slot of a specific width? Are you cutting slots in the edge or the face of a board? Two ways I see it could be done with the 1 7/8ths:

If face, a temporary offset base added to the router that offsets the bit 1/8" so the depth of the slot is actually 1 1/2".

If edge a fence to do the same thing.

Both, sorta.

And I plan to use it in a router table.

I want to use this to cut slots for mini (R1, R2, and R3) biscuits that the Ryobi detail biscuit joiner uses.

I have the Ryobi detail unit, but there are times when doing some of the small projects I work on would be easier/faster on the router table.

[Tom Slick]

you could have an arbor made and use biscuit jointer blades. You could also use a "slitting blade" which is similar to a biscuit jointer blade but may be cheaper. a www.mcmaster.com part number 3061A15 could work if you had the arbor part number 2854A63

[Uncle Hook]

Try sending an email to one of more of the router bit specialty vendors like MLCS.

They may be a ble to suggest a solution and they usually welcome new product ideas.

MLCS created a bearing set for their stackable slot cutter set in response to a suggestion I sent them.

http://www.mlcswoodworking.com/shops.../biscuits.html

[crokett]

Both, sorta.

And I plan to use it in a router table.

Then just offset your rip fence 1/8" to give you the 1 1/2" depth you need on the bit. Or center the fence and add a 1/8" thick sacrificial strip that the stock will ride against.

[pelligrini]

I'm thinking you'll be OK with the larger diameter cutter.

I drew up the R1, R2 & R3 as elipses. From a Ryobi manual the sizes are:
7/32x5/8, 9/32x3/4 and 1/2x1

I then drew a the two cutters as circles of 1-1/2" dia and 1-7/8" dia.

The differences in the depth of the cut at the ends of the biscuits is small. Try 1/128" of an inch for the smaller ones. Even the total length of the slot at maximum depth of 1/4" is about 3/16 of an inch longer for the 1-7/8" cutter.

I'll upload a pic shortly. I can't attach one here.

[cgallery]

I'm thinking you'll be OK with the larger diameter cutter.

I drew up the R1, R2 & R3 as elipses. From a Ryobi manual the sizes are:
7/32x5/8, 9/32x3/4 and 1/2x1

I then drew a the two cutters as circles of 1-1/2" dia and 1-7/8" dia.

The differences in the depth of the cut at the ends of the biscuits is small. Try 1/128" of an inch for the smaller ones. Even the total length of the slot at maximum depth of 1/4" is about 3/16 of an inch longer for the 1-7/8" cutter.

I'll upload a pic shortly. I can't attach one here.

WOW. Thanks for all that work!

And thanks everyone else for the suggestions.

Next time I'm in the shop I'm going to take another look at my "problem."