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