12/46/53/151/172pcs Chrome Vanadium Ratchet Wrench Socket Set - 1/4" Drive 6-Point SAE(5/16"-3/4") & Metric(8-22mm) with Handle, Extension Rod & Connector

Premium CR-V Steel & 6-Point Durability: Crafted with high-quality chrome vanadium (CR-V) steel, heat-treated for HRC 42-45 hardness—resists corrosion, wear, and deformation even under heavy torque. 6-point socket design grips bolt heads/screws tightly (reduces slipping and bolt damage) compared to 12-point alternatives, ensuring reliable performance for professional repairs and long-term DIY use. Comprehensive Size Coverage & Versatile Set Options: Available in 5 scalable sets (12pcs compact to 172pcs full-range) to match different needs:SAE sizes: 5/16" to 3/4" (covers standard American fasteners) Metric sizes: 8mm to 22mm (fits most global automotive, bicycle, and machinery parts) Perfect for car/motorcycle maintenance, furniture assembly, home repairs, and workshop projects—no extra socket purchases needed. 1/4" Drive System & Practical Accessories: 1/4" drive size balances precision and torque, ideal for small-to-medium fasteners. Includes ergonomic ratchet handle (non-slip grip reduces hand fatigue), extension rod (reaches tight spaces like engine bays or bicycle frames), and universal connector (compatible with other 1/4" drive tools). Quick-release socket attachment ensures efficient operation, saving time during repairs.