Neilsen 30pc Screwdriver and Bit Set 1 Magnetic bit holder. 6 Screwdrivers:. 3 Slotted: 1/4"x1.1/2", 3/16x3", 1/4x4". 3 Phillips: #1x3",#2x1.1/2",#2x4". 1 Adaptor(1/4x25mm). 3 Double offset: SL5-PH1,SL6-PH2,S1-S2. 20-Bits(1/4x25mm):. Slotted:4,5,6,7. Phillips:#0,#1,#2,#3. Pozi:#0,#1,#2,#3. Torx:T10,T15,T20,T25. Hex:2,3,4,5. Material:Cr-v.