Why borrow one sander, when you could borrow TWO? Borrow one or other.... Two sanders for most domestic jobs. 18v Cordless Battery Sanders. Borrow one or both. Each supplied with a battery and charger

Random Orbit Sander (circular base), takes circular sanding sheets 12.5cms
Pointed detail sander (angled sanding paper) Takes pointed sanding sheets 10cms x 15 cms (40 is very rough 180 is very fine)