Two double cones.
Two single cups.
One double cup.
One cone spacer.
Two cup spacers.
TQO – cones without face slots.
TQOG – spiral groove on cone bore.
TQOW – cone face slots
TQOGW – spiral groove on cone bore and cone face slots.
TQOGWE – two double cones with extended ribs, spiral groove on cone bores and cone face slots.