3"/3-1/2"/4"AIRWET SANDER/POLISHER (Water-FedType)AT-686WL*TheWater-Fedinstallationfavorsyourmarbleandstonefinishworkbywaterflowontheworkingareaanddoesnoharmtoyourbodyduetonon-dustatmosphereatoperation.*Thislowspeedtooldoeshesandingingdisc(wet)from 4to 3inchindifferentgritfromcoarsetofine. *Leversafetytrigger.*Greatforlaminatingmarbleorstonetableandtrimwork.Rear Exhaust.