11 Piece Chrome Molybdenum Steel Extractor Set, 3/8 in Drive Damaged Fastener Removal Kit for Rusted Nuts Screws with Storage Box

Specifications:Quantity: 7 Pcs / 11 Pcs (Optional)Material: Chrome molybdenum steelExtractor Square Driver: 3/8 (10 mm)Extractor Length: 65 mmExtractor Inner Diameter: 7Pcs: 3/8 , 7/16 (11 mm), 1/2 , 9/16 (14 mm), 5/8 (16 mm)11Pcs: 1/4 , 5/16 (8 mm), 3/8 , 7/16 (11 mm), 1/2 , 9/16 (14 mm), 5/8 (16 mm), 11/16 , 3/4 (19 mm)Package Weight: 1260 g / 2.77 lbPackage Size: 21 * 14.3 * 5.7 cm / 8.26 * 5.62 * 2.241 inPackage List：9 x Extractors (1/4 , 5/16 , 3/8 , 7/16 , 1/2 , 9/16 , 5/8 , 11/16 , 3/4 )1 x Adapter Rod (1/4 to 3/8 )1 x Extractor Rod

• Material Construction: Forged from heat-treated chrome molybdenum steel with 58-62 HRC surfaces hardness; Withstands 800 N·m impact forces during removal of galvanized pipe fittings or suspension components without thread deformation
• Enhanced Grip Technology: Multi-flute internal threading bites into rounded fastener heads at 15° angles; Concave surfaces texture increases friction by 40% compared to smooth-wall extractors when dealing with over tightened wheel bearings or congeal hydraulic fittings
• Quick Size Identification: Accurate-engrave imperial/metric markings (1/4-3/4) remain legible through grease buildup; Color-coded bands enable quick selection during engine bay repairs or underwater equipment maintenance scenarios
• Workshop Ready Portability: Reinforced plastic box withstands 1.5 m drops on concrete floors; 8.26×5.62-inch compact design fits under truck seats for mobile mechanic operate or construction site emergency repairs
• Multi Industry Application: Processes 8-19 mm fasteners in automotive brake systems, industrial machinery, and plumbing installations; Compatible with pneumatic torsion wrenches and hydraulic drivers for power plant maintenance or agricultural equipment servicing