snap-on ratcheting screwdriver end caps

[plinker]

Looking for part #'s for the soft grip ratcheting screwdriver end caps, 1/4 turn style, not threaded style.

They would fit these versions,

SGDMRC4A red
SGDMRC4AO orange
SGDMRC4AG green
http://buy1.snapon.com/catalog/item.asp?P65=&tool=all&item_ID=72226&group_ID=13203&store=snapon-store&dir=catalog

I need to get one in each color.

Thanks