Did you try searching in the metric section under gears? There's a drop-down menu and you can browse the "gear blanks" window for the specific blank you need. It also gives you a slection on the center bore.
Castle Neu 1520 on 6S LiPo Powered Gmaxx (Nitro Killer)
Predator with OS .21TM
Supermaxx with Mach .26
Revo with OS .18TZ
Kyosho ST-RR Conversion
Ofna CR with Tekin ESC/Motor (2)
Did you try searching in the metric section under gears? There's a drop-down menu and you can browse the "gear blanks" window for the specific blank you need. It also gives you a slection on the center bore.
I would prefer a gear with teeth, just solid so that I can machine it where necessary. sjcrss seems to be making some forward progress on the gear, so we may have more options!