Depending on your intended use, there are features available to can make working with your sander easier and more productive.
Locking Trigger: The ability to lock the power trigger in the "on" position is essential for extended sanding tasks. Sanders with this option can greatly reduce user fatigue.
Dust Management: More sanders now have this feature as a standard option. Sanders can have a dust collection bag along with the ability to connect to a vacuum hose.
Ergonomic Grips: Padded rubber grips and side handles can help reduce user fatigue while adding balance and a secure hold.
Clamps: This addition locks your sander in an inverted operating position for more detailed work and odd-shaped work pieces.
Portability: A travel case will keep your sander and accessories together and ready to go to work.
Amperage
Amperage is the measurement of electrical current a motor can carry over a length of time. Instead of indicating how much power a tool has, amp ratings indicate how long a tool will run without overheating. In terms of power sander amperage, the more amps a sander has, the longer it'll run.
Voltage
Voltage indicates the maximum energy potential of a battery. A sander with a higher voltage rating means it can deliver more power.
