As much as I like my Festool sets, I would never be without my Wera Zyklop socket sets. I have the 1/2", 3/8",1/4" and 3/8" metric. sets. I bought all mine from Cadstoolbox.com. WERA 05003596001 8100 SB 4 is the 3/8" imperial set and WERA 05003594001 8100 SB 2 the metric. With these sets and 3/8" 1/4' adaptor or Centroc 3/8" driver adaptor you can fix just about anything as they come with a comprehensive number of 1/4" driver bits also.