Features:??Condition: Brand new??Material: Steel + Plastic box??Size: Approx. 5cm length??Fast, convenient, disassemble screws, tacks.??And speed can be changed in the opposite direction of rotation of the drill in conjunction.Notice:1.Please allow 1-3mm error due to manual measurement. Make sure you do not mind before you bid.2.The colors may be slightly different due to many factors such as different monitors!Package Includes ?? 1 x Screw Extractor Drill Bits Set