The 18V MultiVolt 4-1/2” Slide Switch Angle Grinder (G18DSL2Q4) with lock-on slide switch offers an exceptional price-performance value. With 60% higher overload durability versus its predecessor* users will experience increased productivity. This cordless grinder is extremely easy to use with minimal fatigue, especially in narrow spaces based on its compact size, small soft grip handle and lightweight design. The anti-restart protection feature prevents accidental start up when inserting a charged battery for added safety.The 18V Cordless Angle Grinder accepts both 18V batteries and MultiVolt batteries from Metabo HPT for up 8 Amp hours** of run time per charge! It is part of the growing MultiVolt System that connects the 18V and 36V line of tools with Metabo HPT’s powerful and flexible MultiVolt battery that powers it all.