Max xr, 20v, lithium ion, 4-1/2" cordless brushless paddle switch small angle grinder with kickback brake, tool only, no battery or charger included, brushless motor requires no brush changes, brake stops wheel in 2 seconds or less on average, kickback brake engages when a p", stall, or bind up event is sensed & the electronic brake engages with maximum force to quickly stop the wheel, reduce the movement of the grinder & shut the grinder off, anti wobble hitch pin, 2 stage trigger requires 2 actions to activate tool, ideal for metal grinding & cutting, ideal for cutting bricks/pavers & concrete.