Wright Tool recently released their 3/8" and 1/2"-drive impact hex bit sockets, which also come in metric sizes. Offered in standard lengths, these sockets are accessible with impact-rated replaceable hex bits that can be held with a set screw. The following bit sizes are available:
For 3/8"-drive sockets'#8212;1/8", 5/32", 3/16", 7/32", 1/4", 5/16" and 3/8".
In metric'#8212;2, 2.5, 3, 4, 5, 6, 7, 8 and 10 mm.
For 1/2"-drive sockets'#8212;1/4", 5/16", 3/8", 7/16", 1/2", 9/16" and 5/8".
In metric'#8212;6, 8, 10, 12, 14 and 17 mm.
In a 7-piece 3/8"-drive impact hex bit set'#8212;1/8", 5/32", 3/16", 7/32", 1/4", 5/16" and 3/8" bits, as well as a rail and 6 '#8211; 9 clips.
In a 9-piece 3/8"-drive metric impact hex bit set'#8212;2, 2.5, 3, 4, 5, 6, 7, 8 and 10-mm bits, as well as a rail and 6 '#8211; 9 clips.
In a 7-piece 1/2"-drive impact hex bit set'#8212;1/4", 5/16", 3/8", 7/16", 1/2", 9/16" and 5/8" bits, as well as a rail and 6 '#8211; 9 clips.
In a 6-piece 1/2"-drive metric impact hex bit set'#8212;6, 8, 10, 1, 14 and 17-mm bits, as well as a rail and 6 '#8211; 9 clips.