maxsti source factory chrome vanadium steel allen wrench multi-specification flat head plum blossom hex wrench set

Chrome-vanadium steel for forging, high hardness with excellent toughness, wear-resistant and anti-rust. Multiple specifications with flat plum design that fits screws without slipping. Precision manufacturing with tight tolerances for easy assembly and disassembly. Solves the problems of easy wear and slippage of wrenches. Certified by SGS, ensuring quality. Essential for home repairs and mechanical assembly; durable, hassle-free. Choose professional tools to improve efficiency—every tightening is secure.