BEST-890 screwdriver ,tools specialized inlaptop,PC and mobile phone repairing specification :"+" type (3pcs) :1.0mm .1.5mm. 2.0mm(commonly ... also can use for disassemble CD-ROM3.commonly used tools for disassemble mobile phone :"*"type screw use T3,T4,T5,T6,T7,T8 ... can save it in stock for you . BEST-890 screwdriver ,tools specialized inlaptop,PC and mobile phone repairing