I use Allen brand ones. I've have had them for years. http://www.allenhex.com/t-handles/allen-56652g-8-pc-metric-cushion-grip-t-handle-set.html and the SAE set too.
Bondhus ones are nice, the tee part is weighted well for spinning fasteners off http://www.bondhus.com/bondhus_products/tool_categories/t-handles/
Their handiness is predicated on the fastener spinning freely. For that reason, I've never found a use for 'em. Assuming the fasteners spin freely, and there's enough of 'em to make it worthwhile, I'll just T-bar an extension and swap out whatever socket(s) is/are needed...or hit it with an air gun.
Dont by craftsman mine was great till the chrome came off after a few uses.. Bluepoints another option. Part of snap on
Motion Pro ones are nice, I use them a lot on the dirt bike with the smaller fasteners. Or an impact gun with adaptors down to 1/4" drive
I have 2 sets, one is Motion Pro and the other is Craftsman. The Motion Pro are much nicer. One of the Craftsmans got a twist in it and another one wore the rounded tip down pretty bad. My local Sears hardware closed so I can't go get a replacement right down the street anymore.
Would they actually warranty it anyway? Thought they switched it to on the pro series line or something..
Motion Pro from revzilla is under $20, Craftsman is around $30. The MP is a great quality tool and definitely my choice.
Another vote for MP here too. I also have a set of Allen t handle hex bits. I just wish they had a ball end on them
I like the bondhus ball head with a screwdriver handle on the smaller screws. Works great for getting the carbs off the boots.