Bosch psb 1800 li 2 cordless combi drill bosch diy 06039a3371 the bosch psb 1800 li 2 cordless combi drill is ideal for screwdriving drilling and impact drilling in wood metal and masonry it has 20 pre selectable torque settings plus a drill and impact drill setting providing optimum power for every applicationthanks to its lithium ion technology the drills battery is immune to memory effect self discharge and is always ready to use bosch 06039a3371 psb 1800 li 2 cordless combi drill