The Makita 4-1/2" SJSâ„¢II High-Power Angle Grinder (GA4590) features a powerful 15 AMP motor that delivers more output and features a variable speed control dial that allows the user to adjust RPM from 2,800 - 11,500 to match the speed to the application.
Features:
Powerful 15 AMP motor delivers more output and variable (2,800 - 11,500) RPM
SJSâ„¢II provides a leaf spring and cam gear drive mechanism that is engineered to reduce vibration for increased operator comfort during extended use
Vibration absorbing side handle provides increased comfort on the job
Electronic controller provides constant speed control which automatically applies additional power to the motor to maintain speed under load
Electronic Controller provides soft start which is designed to suppress start-up reaction for smooth start-ups and longer gear life
Electronic Controller provides an electronic current limiter which helps protect the motor from overload in high torque applications
Variable speed control dial enables user to match the speed to the application
Labyrinth construction seals and protects the motor and bearings from dust and debris for longer tool life
Motor fan is designed with enlarged fins for increased air flow and a cooler running motor
Complete zig-zag epoxy is applied to both sides of the armature coil and a powder coating to the field for protection from debris and longer tool life
Specifications:
Wheel Diameter: 4-1/2"
AMPS: 15
No Load Speed (variable speed): 2,800 - 11,500 RPM
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