Feature:1. RUSTPROOF MATERIAL: These screwdriver heads are made of durable S2 steel material to provide maximum rust and corrosion protection, ensuring good durability2. QUICK RELEASE: With the magnet quick release bit holder, you can easily insert the drill bit into any 1/4in hex shank power tool, easy to install and use3. WITH BOX: The drill is neatly arranged in a sturdy double layer storage bin, compact and easy to transport, easy to access and store, prevent from damage and loss4. CLEAR LABEL: The screwdriver bit socket set all sizes are clearly labeled for quick and easy identification, provide great convenience for your work and life5. SCOPE OF APPLICATION: Screwdriver bit set can be used for vehicle, home appliances, motorcycles, machinery, bicycle maintenance, practical and usefulSpecification:Item Type: Screwdriver Bit SetMaterial: S2 steel25mm Long Bit: PH0 PH1 PH2 PH3 PZ0 PZ1 PZ2 PZ3 SL4 SL5 SL6 SQ2 SQ350mm Long Bit: PH2 PH2 hex bit(3MM 4MM 5MM 6MM) T10 T15 T20 T25 T30 T35Hex Socket: 5MM 6MM 7MM 8MM 9MM 10MM 11MM 12MM 13MMShank Diameter: 1/4in hex shankApplication: Automobile, household appliances, motorcycles, machinery, bicycle maintenance.Package List:26 x Screwdriver Bits9 x Socket1 x Storage CaseNote:There may be some measurement errors.