Complete 13-size set with full coverage: metric 8/10/12/13/14/16/17/19mm & SAE 6.35/9.5/11/12.7/17.5mm, fits all rounded, rusted, stripped lug nuts for vehicles and machinery.
One-piece forged Cr-Mo alloy steel with full heat treatment & black oxide finish, high hardness stands heavy torque impact without crack or deformation, compatible with impact wrenches & ratchets.
Internal reverse spiral tooth design tightly grips stripped, corroded and rounded nut outer walls, removes seized fasteners fast without cutting or grinding.
Dual drive design: standard 3/8 square drive for ratchets, outer hexagonal body works with open/box wrenches, accessible for tight wheel wells & engine bays.
Thick rigid blue plastic storage case with fixed slots to hold sockets securely, dustproof & moisture resistant, portable for garage shops and roadside emergency car repair.




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