1. All tips are made of supreme chrome / vanadium steel, and specifically heat-treated (firmness HRC 52 Degree -56 Degree) 2. Precision screw driver set includes 6 insert bits (12 Tips), 1pc handle 3. Precision screwdriver set can be used for a variety of projects from hobbies, the computer Cell Phone repair and other electronic repair 4. It comes with a box for easy transport 5. Tip: PH000 PH00 PH1 Philips Screwdriver 6. 2.0mm 3.0mm 4.0mm Flat Screwdriver 7. T5 T6 T8 T10 T15 T20 Torx Screwdriver 8. The screwdriver tips are magnetic
