Durable aluminum housing.
High torque removes tight screws easily.
Quick-change chuck uses 1/4" (6.4mm) hex bits.
AIuminum alloy case,spray surface.
High-precision P6 industrial bearings.make it turning up more stable.
Elongated cylinder make the torque increased by 10%,
Pull-type bushings,stuck the head of the wind granted without falling.
The commutation button set make speed and commutation as a whole.
Military-grade chrome-nickel steel processing blow assembly more durable.