I like the availability of a set with different varieties of bits.
Was not pleased with the quality control, set contained correct number of bits, but missing three sizes, included three random loose 1/4" bits to make up a set, also some have rust scale.
Exchanged for another set, set recieved same outcome.
Don't expect another exchange will be better.
I still have "Performance Tools" from the past that still work, but this set was not up to par...
Unique four panel case folds three ways. Use with power drill, drill press or bit drivers. PH: #0 to #3. SL: 1/8 to 5/16". Star: T10 to T45. Hex: 3/16 to 3/8"and 6 to 10 mm. SQ: S1 and S2. Nut drivers: 5/32 to 1/2". Drill bits: 3/64 to 3/8" and much more.