It’s not a perfect Venn Diagram. Most notably, the Manta Driver Kit doesn’t have any of the larger Nut Drivers that the UBK has. Other than that, the UBK has the Flathead 1.3 mm, Hex 1/16”, Hex Security 3/32”,Hex Security 5/64”, Hex Security 7/64”, Torx T6 and T7 (not security) and the Manta Driver kit does not.
However the Manta Driver kit does have the iPhone Standoff Bit, Triangle 2.2 mm, and Triangle 2.6 mm that the UBK does not.
When we chose the bits for the Manta Driver Kit, it was really a pairing down of the least-necessary, and uncommonly used bits. I think if you bought the Manta, you would not miss any of the other bits that are in the UBK.
