GDZ10-55(20S)
【Bull Small Steel Gun】16V/10mm
Small, fast, and agile
Small body size 142mm
Fast speed 1900 rpm 
High torque 55 Nm

GDZ10-60(2.0S) 
20V/10mm 
Lightweight and powerful, super energy-efficient
Light weight 0.94 kg 
High torque 60 Nm 
Fast speed 2100 rpm

GDZ13-60(20S) 
20V/13mm
Lightweight and powerful, super energy-efficient
Lightweight 1.0 kg 
High torque 60 Nm 
Fast speed 2100 rpm