Bosch psb 650 re 1 speed impact drill 650w case bosch 0603128070 p these psb 650 re impact drills from bosch have a 1 speed gearbox they use straight shank drills p p quick action drill chuck speed pre selection forward reverse operation bosch electronic speed control softgrip p bosch 0603128070 psb 650 re 1 speed impact drill 650w case