The TiN coating greatly increases the wear resistance of these bits. These are standard series bits at 25mm long, designed for use in 1/4" hex bit holders. The colour coding by type (red for Pozi, blue for Phillips etc) makes it easy to find the right bit first time.
This set comprises four plastic strips each with 10 bits:
Pozi drive - 2 x PZ1 TiN, 6 x PZ2 TiN, 2 x PZ3 TiN
Torx drive - 2 x T15 TiN, 3 x T20 TiN, 3 x T25 TiN, 2 x T30 TiN
Phillips drive - 5 x PH1 TiN, 5 x PH2 TiN
Slotted bits - 2 x 4mm TiN, 4 x 5.5mm TiN, 4 x 6.5mm TiN