Anyone use Blackhawk Quick Ratchet set?

[rev1]

Does anyone have the Blackhawk Quick Ratchet wrench set that uses the interchangable heads? It looks interesting plus I have an older Utica torque wrench that uses interchangable heads and am wondering if the Blackhawk heads will fit the Utica. If someone has one, can you measure the part of the head that fits into the handle? Thanks.

[64merc]

They are cheap but I haven't been convinced enough to pull the trigger on a set.

[rev1]

No one with experience with this tool?

[Kurt4440]

The female portion of the handle is 9.0mm x 12.0mm. The heads are 8.9mm x 11.9mm.