ITEM NAME:Wowstick X0 18pcs Multi-purpose 4mm S2 Steel Screwdriver Bit Batch Heads #gib Store Home Promotion Hot Item Add to Fav.Suitable for Wowstick series screwdriver, etc. 18pcs batch head, made of S2 steel, rust-proof and durable. Quantity: 18pcs. 18pcs X Batch Heads. Material: S2 steel. Batch Head Size: PH000/PH0/PH2/SL1.0/SL2.0/SL3.0/T5/T6/T8/P2/P5/P6/H2.5/H3/SQ0/3.0/Y2.5/U3.0.