The US PRO 12pc Screw and Bolt Extractor Set is designed to efficiently remove broken screws and bolts without damaging the surrounding material. Ideal for both DIY enthusiasts and professionals, this set includes a range of drills and extractors to handle various sizes of damaged fixings. Features : Comprehensive Range : Includes HSS drills and corresponding extractors. Storage : Supplied in a blow moulded case for secure storage and easy transportation. Drill Sizes : 1mm, 2mm, 3mm, 4mm, 5mm, 6mm. Extractor Sizes : 3-6mm, 6-8mm, 8-11mm, 11-14mm, 14-18mm, 18-25mm. Drills Material : Manufactured from HSS 4241 for durability and performance. Easy to Use : Drill a pilot hole into the broken fixing. Select a suitable extractor and screw it in anticlockwise. Remove the broken screw or bolt. Brand : US PRO