Small steel gun, noise reduction bearing: special bit! Magnesium silicon alloy 1 powerful magnet, new flagship quality screwdriver-small steel gun Six kinds of ", tough guy threads, special for special models, each of the appearance is deduced from maintenance technicians, tough guys, steel", full of vigor Noise reduction, bearing, after 10,000+ times of testing, strictly control the quality, the bearing is not stuck, the duration of one rotation is up to 1 minute Magnesium-silicon alloy material, material hardness and wear resistance are 300% higher than ordinary materials Super hard", special bit, on the basis of S2 steel, adding chromium, molybdenum, tungsten, vanadium and other alloy elements to improve hardenability, toughness, wear resistance and heat resistance The ultimate, grip, look and feel improved, giving you a comfortable disassembly experience

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