Expert quality. environmentally-friendly. ni-mh batteries with higher energy discharge (2.3ah) variable speed. rotary function. hammer function. chisel function. safety clutch. forward/reverse facility. adjustable side handle & depth rod. soft grip handle & trigger. Supplied complete with: three sds drills, sds chuck adaptor, 13mm geared chuck, carrying case, two 24v 2.3ah ni-mh battery packs, 230v ac universal one hour fast charger with bs 3 pin plug. specification: batteries.. . 2 x 2.3ah ni-mh drilling capacities: mild steel.. . 10mm. wood.. . 20mm. masonry.. . 20mm. speed (no load).. . 0-900r/min. blows per minute.. . 4750 max. chuck capacity.. . 13mm. spindle thread.. . 1/2" x 20unf. weight (inc. battery pack).. . 4.1kg.