You're right. I couldn't find it either on Eastwood or Harbor Freight.It's pretty simple really. Maybe you can make one.It's 1/8" plate and the mounting bolts I am using are 3/8"-16x 1 1/2"

Here's an image of how it's mounted( on my 261). That's a 1/2" extension bar I'm using for leverage.


http://pic19.picturetrail.com:80/VOL1061/3611363/20102173/332085807.jpg

Drew
Mid-Atlantic Chapter