10pcs Damaged Nut Bolt Extractor Repair Kit Metric Broken Bolt Remover Stud Extractor. Features: 1. 2 Type for you to choose. 2. 10Pcs Damaged nuts and bolts extractors. 3. Can be driven with a metric spanner or socket. 4. Remove the nut is ten sets of different sizes suitable for damaged, rusted nut bolt, this is taken as unscrew screws,nuts and the most important conducting stabilization tool. 5. When you are faced with a rounded-off, rusted-tight or painted-over bolt, bolt extractors will break it free. 6. Reverse spiral flutes are designed to bite down to provide maximum gripping power. Specification: 1 : Short Type(10pcs set); Material: High carbon steel; Color: Black; Standard: Metric; Type of Thread: Reverse spiral cut, tapered; Remove No.: 1/2/3/4/5/6/7/8/9/10; Fit Hex Size: 9/10/11/12/13/14/15/16/17/19mm; Outside Hex Size: 16/16/19/19/19/22/22/25/25/27mm; 2 : Long Type(10pcs set); Material: High carbon steel; Color: Black; Standard: Metric; Type of Thread: Reverse spiral cut, tapered; Remove No.: 1/2/3/4/5/6/7/8/9/10; Fit Hex Size: 9/10/11/12/13/14/15/16/17/19mm; Outside Hex Size: 16/16/19/19/19/22/22/25/25/27mm; Package Included: 10 x Short Type Bolt Extractor; Or10 x Long Type Bolt Extractor