ITEM NAME:8Pcs/Set Damaged Broken Screws Extractor Drill Bits Easy Out Remover Center A9K9 8Pcs/Set Damaged Broken Screws Extractor Drill Bits Easy Out Remover Center A9K9 Type:Twist Drill Bit DIY Supplies:Electrical Use:Metal Drilling Extractor Diameter Size of Screw Stud 1: 4mm 4-6mm 2: 4.5mm 6-8mm 3: 6.4mm 8-11mm 4: 7.5mm 11-14mm 5: 11mm 14-18mm 6: 15mm 18-25mm 7: 19mm 25-35mm 8: 24mm 35-45mm Total Length(Approx.): 52mm,56mm,66mm,75mm,81mm,90mm,100mm,100mm This tool will remove any stud, screw, pipes and bolts from 4mm to 45mm Made from a high standard of steel being drop forged and heat treated. perfect tool for any professional or hobbyist. colour:Black + silver Material:metal Package Contents: 8 * Stud screw extractors