4PCS Universal Wrenches, Double-Head Self-Tightening Torx Wrenches Multifunctional for 3mm-22mm Nuts for Machine/Auto Repair, Mechanical Engineering (4PCS Black)
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[Industrial-Grade Material]: Made of chrome vanadium steel with electrophoresis-polished surface for corrosion resistance, matching professional torque requirements in mechanical/automotive repairs
[Dual-Head Versatility]: 4PCS Two-ended design handles 9/16”-7/8”(14-22mm), 5/16"- 1/2"(8-13mm), 5/16"-11/16"(8-17mm), 1/8"-5/16"(3-8mm) fasteners across 4 tool lengths 5.8"/6.26"/9"/10.55"(147/159/230/268mm) for multi-size compatibility
[Leverage Optimization]: Extended handle design amplifies torque application through physics principles, reducing hand fatigue during prolonged bolt removal tasks
[Precision Engineering]: 3.5mm-8mm (0.14"-0.31") thickness variations ensure secure grip on thin automotive bolts and thick industrial nuts without slippage
[Cross-Industry Application]: Designed for mechanics, engineers, and DIYers working with standard fasteners in machinery, vehicle maintenance, and equipment repair scenarios
