Features 1. Use the extractor to easily and quickly remove damaged or rusty water pipes, screws, bolts, etc. 2. With deep and wide thread design, the thread extractor tool fits better with the equipment, easy to bear force, and simple to operate. 3. Broken Screw Extractor kit forged from high-quality bearing steel, heat-treated as a whole, durable and sturdy. 4. Comes with a molded box, these extractors are stored in an orderly manner, easy to find and carry. 5. Strong practicability, the screw removal tool kit is very suitable whether it is an ideal household or a professional electrician. Specification: Material: Bearing steel 1#: 4mm 2#: 4.5mm 3#: 6.5mm 4#: 7.5mm 5#: 11mm 6#: 15mm 7#: 20mm 8#: 25mm Weight: 782g / 27.6oz (approx.)   Package List: 8 x Extractors 1 x Molded Box Package List