All IRWIN fastener drive bits are manufactured from industrial grade tool steel and tested to meet the highest standards for hardness and torque. Accessories: 1/4" Socket Adapter 3/8" Socket Adapter 5/16" Magnetic Nutsetter 2-1/2" Quick Charge Chuck 6" Quick Change Extention Bits: #2 Phillips power bit x3-1/2" #3 Phillips power bit x3-1/2" #2 POZIDRIV power bit x3-1/2" #1 Phillips power bit x6" #2 Phillips power bit x6" T15 TORX power bit x3-1/2" T20 TORX power bit x3-1/2" T20 TORX power bit x6" T25 TORX power bit x6" T27 TORX power bit x6" T30 TORX power bit x6"
