This 11-piece bolt extractor set is great for loosening damaged bolts and nuts. This professional tool set is ideal for commercial or occasional use. It has been specifically designed to remove damaged or corroded nuts without damaging the bolt thread. Made of high-quality steel, this extractor set is strong and durable. Its innovative design provides maximum gripping power for the removal of damaged fasteners. The complete bolt extractor set is delivered in a sturdy case for easy storage and transportation. Delivery includes 10 bolt extractor sockets and 1 lever.