Nickel Plated HSS Broken Rusted Screw Bolt Stud Remover Extractor 5pcs Product Name : Screw Extractor;Main Material : HSS, Plastic Case Main Color : Silver Tone, Black;Case Size : 95 x 66 x 18mm/ 3.7" x 2.6" x 0.7" (L*W*T) Hex Shank Size : 6.3mm/ 1/4";Extractors Type : 0# for 5-6mm Dia Screw 1# for (+/-)6mm Dia Screw 2# for (+/-)10mmDia Screw 3# for (+/-)12mm Dia Screw 4# for (+/-)14mm Dia Screw Net Weight : 135g Package Content : 5 x Screw Extractors 1 x Plastic Case