Long dremel bits, where to buy?

I have a pneumatic grinder and some short carbides, but Mother Nature is a bitter beach right now. So indoors in the basement it is. "Jobmate" basic brand 1/8" elec grinder is what I have. Lots of stones and a few carbides. Just too short. Figured longer bits might be available for it. Makes sense they arent, I agree bearing/motor failure may be pretty quick.
I'll check around for a midgrade elec 1/4" grinder kit with some 6" burrs. I dont need a high grade one.
Thanks all.
Bruce, will that flexible extension work on different makes of 1/8" grinders? Are the connections at all grinders the same?
Thanks!

Bad Sport said

These are inch and 3/4 OAL.

Goxawee 20pcs Diamond Burr Set Rotary Grinding Drill Bits Set for Dremel Tool | eBay

And I would suggest this:

Flexible Dremel Extension Shaft long moto attachment chuck Rotary Tool accessory | eBay

IF you don't have one. I have one of these, and I sometimes put it on, hang the Dremel over the work area and use the extension.

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