Force brand, original from Taiwan, professional tools.  
Industrial quality 31pc 1/4" shank power bits which almost included all models.
These handy all-in-one sets are a must-have for everybody.
Made from S2 steel, forged bit reduces stripping and increases bit life (3 times). Heavy-duty cold-forged steel for higher torque output.
31pc items are well organized and kept in a transparent tool holder.
Content:

• Phillips bit PH.0 (x1)
• Phillips bit PH.1 (x2)
• Phillips bit PH.2 (x2)
• Phillips bit PH.3 (x1)
• Pozidriv bit PZ.1 (x2)
• Pozidriv bit PZ.2 (x2)
• Pozidriv bit PZ.3 (x1)
• Slotted bit 4 - 5.5 - 6.5 mm
• Hex bit 3 - 4 - 5 - 6 mm
• Star bit T5 - T6 - T7 - T8 - T9 - T10 - T15 - T20 - T25 - T27 - T30 - T40
• Magnetic quick-release bit's holder