Rockwell RK1807K2 20V Brushless Drill/Impact Driver Combo Kit, 2-Piece Brushless motor increases run time up to 50% more per charge over standard brushed motor 1/2" Metal, single sleeve ratcheting chuck holds bit securely through tough applications LED work light for illuminates dark areas Batteries for Life Replacement Guarantee Compact and lightweight design reduces fatigue and allows access in closed spaces