Product Name: Screwdriver Color: Blue+Yellow Product Size: As Shown Product Main Material: Precision Zirconia Ceramic Drill Bit, Plastic Body Color: As Picture Shown Length: Approx 10.5cm/4.1inch Quantity: 1 set of 8 Screwdriver Bit Size: (unit: mm) YR-034A (0.4x0.9) tip diameter 2.0 YR-034B (0.4x1.3) tip diameter 2.0 YR-034C (0.4x1.8 ) bit diameter 2.5 YR-034D ( 0.4 x2.0) drill diameter 2.5 YR-034E (0.4x2.4) drill diameter 2.5 YR-034F (0.7x2.5) drill diameter 2.5 YR-034G(+PH0) YR-034H(+PH1.7) Precision DesignThe precision small screw driver watch repair tool set has a precision design, which is very suitable for watch repair work. accuracy of various small objects; fine workmanship can avoid scratches; the threaded handle is easy to apply, allowing you to hold it easily without any discomfort; Cap design, high torque. Easy to use and storeThe precision screwdriver set is easy and convenient to use. Each size of watchmaker screwdriver has a different color, and the size can be quickly identified by the appearance, saving time. Watch screwdriver set includes a storage bag, which is easy to store and carry. High quality materialThe small precision screwdriver is made of high quality steel, stable and not easy to break, safe and reliable, hard to wear and anti-corrosion, so you can use it safely for a long time. Small size, lightweight and portable, easy to carry. Wide ApplicabilityThe precision watch repair tools kit screwdriver contains not only screwdrivers, but also tweezers and wipes, which are suitable for watch repair, but also watch battery replacement, bracelet screw removal, mobile phone, laptop, glasses, jewelry and electronic equipment. repair.