Paul,
6 Brush, cleaning, tank
7 Brush, cleaning, 12"
8 Brush, cleaning, 11 1/2"
10 Brush, cleaning, 11"
11 Brush, flue, 3' 10"
The latter was not bent at 90 degrees but has a semi flexible wire handle.
I have no 8 and have a source for no 11 but not the others.