【HEAVY-DUTY DAMAGED-SCREW EXTRACTOR SET】Tackle frozen, broken, stripped, and damaged screws, nuts, bolts studs, fittings, threaded pipes, and pins with this set of screw extractors. These extractors will help you remove even the toughest broken fasteners with speed and efficiency. A must-have professional stripped screw removal tool in your toolbox.【MULTIPLE VISIBILITY SIZES】1"-7/8", 1"-27/32", 1"-13/16", 1"-25/32", 7/8"-3/4", 7/8"-23/32", 7/8'-11/16", 7/8"-21/32", 3/4"-5/8", 3/4"-19/32", 3/4"-9/16", 3/4"-17/32", 5/8"-1/2", 5/8"-15/32", 5/8"-7/16", 1/2"-13/32", 1/2"-3/8", 1/2"-11/32", 1/2"-5/16", 1/2"-9/32", 1/2"-1/4", 1/2"-7/32", 1/2"-3/16", 1/2"-5/32", 1/2"-1/8". 25-piece multiple-size easy-out screw extractors meet all your need.【DURABLE BOLT-EXTRACTOR SET】Each industrial-grade extractor is constructed from heat-treated high-hardness premium chrome-molybdenum steel for superior toughness. The aggressive multiplane teeth feature a left-hand spiral design to provide extra gripping power and faster threading. Each surface is precision machined and resistant to corrosion. Note: The extractor set has oil on it to prevent rusting.【EASY TO USE】LLNDEI hex head design screw extractor set is for applying maximum torque with sockets and wrenches, or it can be used with a hexagonal drill bit for a wide range of applications. Compatible with common to heavy-duty power tools, drivers, and screwdrivers handle tools. Each extractor has easy-to-identify size markings, so you can quickly choose the right extractor for almost all your needs.【SERVICE GUARANTEE】we offer a 30-day barrier-free return policy. Please feel free to buy and use. For any quality-related problem in 2 years, we will replace the fittings for free or refund. Before leaving any feedback, please contact us, and we will reply to you to solve any problems in your use within 24 asap. Product Description LLNDEI specialized easy-out extractors are ideal for removing stubborn or broken screws, bolts, nuts, studs, fittings, threaded pipes, and Replacement fittings for high-torque applications. Specification of LLNDEI 25 PCS Screw Extractor Set BOTTOM(1-inch)：7/8", 27/32", 13/16", 25/32",BOTTOM(7/8-inch)：3/4", 23/32", 11/16", 21/32",BOTTOM(3/4-inch)：5/8", 19/32", 9/16", 17/32",BOTTOM(5/8-inch)：1/2", 15/32", 7/16", BOTTOM(1/2-inch)：13/32", 3/8", 11/32", 5/16", 9/32", 1/4", 7/32", 3/16", 5/32", 1/8". Left-hand Spiral Design The left-hand spiral design offers extra gripping power and faster threading. Organized Storage Case All the screw extractors are well packed in a heavy-duty blow-molded case for secure storage and easy carry. High-visibility Size Hex Extractor size and recommended drill bit size are etched on each tool for quick selection of the right drill bit. Easily remove broken parts without breaking or jamming. HOW TO USE？ This LLNDEI extractor tool kit is perfect for both professional mechanics and DIY enthusiasts looking for a high-quality and reusable extractor. If the broken part has no hole, carefully center the punch.Drill hole 1/2 size of broken part.Insert extractor; Grip the hex portion with a wrench; Turn until extracted. The broken part comes out quickly and easily. It can be used with universal, impact, or other wrench. NOTE: Drill Bit and Socket Adapter are not included. Reusability Our LLNDEI Bolt / Nut Extractor Kit is made from durable materials that ensure multiple uses for each extractor. After removing a bolt or nut, the extractor remains attached to the fastener, and you can remove it using a hammer or clamp. Our Service In case of any missing or damaged parts due to incorrect use, do not worry, let us know for a free replacement. WIDE APPLICATION MATERIAL Cr-MO Cr-V (50BV30) Cr-MO Cr-V (50BV30) Cr-V (50BV30) Cr-V (50BV30) DRIVE - 3/8-Inch 3/8-Inch, 1/2-Inch 3/8-Inch 1/4-Inch, 3/8-Inch, 1/2-Inch 1/2-Inch Blow Molded Case 8.8"L x 2.9"W x 1.5"H 6.5" L x 4.1" W x 2.0" H 10.6" L x 8.7" Wx 2.0" H 12.6"L x 8.8"W x 2.8"H 11.0“L x 8.0“W x 2.8“H 11.6"L x 7.9"W x 2.3"H