7pcs 0.7mm-3mm Mini Hexagonal Allen Key Set Wrench Screwdriver Tool Kit

Hard and durable. Blackening of surface treatment, with high strength, high toughness, wear resistance. Good oxidation resistance. Tips: Use within the specified shear range, put in a dry environment, use a dry cloth to wipe Diameter: 0.7 mm/0.9 mm/1.3 mm/1.5 mm/2 mm/2.5 mm/3 mm