DURABLE MATERIAL: Made from hardened carbon steel Each of the screw remover will easily extract stubborn, rusted, cracked, damaged or stripped screws, studs, bolts, fastener or nut, and more. Spiral and featuring a pointing tip will firmly embed the extractor into the damaged screws or others for extra resistance and ideal gripping power for easier removal WIDE APPLICATION:The broken screw extractor is suitable for screws or bolts of any size, suitable for removing various damaged head bolts and screws. Suitable for wood and machine screws MULTIPLE SIZES :The complete damaged screw extractor set comprises 5 pieces 3-6mm, 6-8mm, 8-11mm, 11-14mm, 14-18mm to cover a wide variety of broken screw and bolt removal needs for multiple applicatio EFFECTIVE DESIGN:Features a reverse spiral flute with a tapered, coarse-threaded structure for strong gripping power and effortless removal of damaged or seized fasteners with minimal effort PORTABLE STORAGE CASE:Comes neatly organized in a durable, compact storage case, making it easy to transport, store, and quickly access the right size extractor when you need it most., Weight: 0.2645547144 pounds, Manufacturer: Dapetz