Features: 1. Advanced S2 alloy steel, surface bluing process, high hardness, hard torsional flex, good toughness. 2. Professional repair tools that are easy to carry and store at home and work. 3. Commonly used slot, cross, star screwdriver, can be mounted on the wind granted or electric screwdriver. 4. Come with a plastic storage case, convenient to store and protect. 5. Good wear resistance, durable to use, long service life. Specifications: Material: S2 alloy steel Magnetic: Yes Screwdriver Bit Length: Approx. 25mm / 0.98inch Screwdriver Bit Diameter: Approx. 6.3mm / 0.25inch Bits Type PH0 PH1 PH2 PH3 SL3 SL4 SL5 SL6 H3 H4 H5 H6 T15 T20 T30 T40 SP4 SP6 SP8 SP10 SQ0 SQ1 SQ2 SQ3 PZ1 PZ2 PZ3 Y3 Weight: Approx. 188g Package Included: 28 x Screwdriver Bit 1 x Extension Rod Holder (6.3 x 60mm) Note: Only things in package included, no other stuff. 1、Advanced S2 alloy steel, surface bluing process, high hardness, hard torsional flex, good toughness 2、Professional repair tools that are easy to carry and store at home and work 3、Commonly used slot, cross, star screwdriver, can be mounted on the wind granted or electric screwdriver. 4、Come with a plastic storage case, convenient to store and protect 5、Good wear resistance, durable to use, long service life