Jetech shaft is made of chrome vanadium molybdenum alloy steel which makes high hardness, high tenacity, and optimal high torsion
The internal structure of screwdriver handle: Jetech screwdriver handle is made of modified Poloypropolene plastic inside and of Thermal Plastic Elastomer outer side to obtain the perfect comfortable hand gripping and high torsion simultaneously
Jetech shaft is made of chrome vanadium molybdenum alloy steel which makes high hardness, high tenacity, and optimal high torsion
The internal structure of screwdriver handle: Jetech screwdriver handle is made of modified Poloypropolene plastic inside and of Thermal Plastic Elastomer outer side to obtain the perfect comfortable hand gripping and high torsion simultaneously