Impact 4" Long Hex Head Drill Bit Set, 20PCS Allen Wrench Hex-Shank Set, Metric&SAE, 1/4" HexBit Magnetic S2 Steel Screwdriver-Bits with Storage Box

Featuring alloy, this impact hex head Allen wrench bit set is rust resistant and sturdy. The package comes with 10 Metric: 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 6mm, 7mm, 8mm and 10 SAE: 5/64”,3/32”, 7/64”, 1/8”, 9/64”, 5/32”, 3/16”, 7/32”, 1/4”, 5/16”. Easy to meet your needKey Features:Quick Release: 1/4inch quick release hex shank, easy to use. The 4inch length ensures it is more convenient in tight and longer spacesSpecification: Material: Alloy SteelColor: BlackSize: 10cm/3.93 inchSpecification:Metric: 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 6mm, 7mm, 8mmSAE: 5/64”,3/32”, 7/64”, 1/8”, 9/64”, 5/32”, 3/16”, 7/32”, 1/4”, 5/16”Application: Cordless drills, hand drills, air screwdrivers, electric screwdrivers, etc

• [Premium S2 Alloy Construction]: Hardened CNC-machined drill tips with manganese phosphate coating resist rust and snapping—15x longer lifespan than standard bits. Reinforced magnetic heads securely grip screws without decay
• [Torsion Zone Durability]: Impact-optimized torsion area absorbs torque spikes for smooth operation in heavy-duty drivers, automotive repairs, and industrial projects.
• [Full-Size SAE/Metric Kit]: 20-piece set covers SAE (5/64"-5/16") and Metric (1.5mm-8mm) sizes with universal 1/4" hex shanks. Extra 4" length reaches tight spaces in 3D printers, motorcycles, and furniture.
• [Magnetic Precision Grip]: High-strength magnetic tips lock screws instantly for one-handed use—ideal for electronics, RC models, and overhead repairs.
• [Pro-Grade Versatility]: CNC-Machined with corrosion-resistant, snap-proof reliability. Built for DIYers and pros: tackles bed frames, bicycles, cars