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 Type: Digital.  Jetech shaft is made of chrome vanadium molybdenum alloy steel which makes high hardness, high tenacity and optimal high torsion.  Screwdriver tips with superior features: Jetech screwdriver blades, made of high quality chrome vanadium alloy steel, through ..

 Type: Normal.  Jetech shaft is made of chrome vanadium molybdenum alloy steel which makes high hardness, high tenacity and optimal high torsion.  Screwdriver tips with superior features: Jetech screwdriver blades, made of high quality chrome vanadium alloy steel, through precision machin..