technical data:power supply voltage - 18 vidle speed: 0 - 950 rpmimpact frequency at idle: 0 - 4700 bpmsingle impact energy (according to epta standard): 2.0 jmaximum drilling capacity:in concrete: 24 mmin steel: 13 mmin wood: 27 mmtool holder type: sds-plusdimensions:length: 353 mmwidth: 85 mmheight: 213 mmweight: 3.4 kgprofessional cordless hammer drill with a quick-change sds-plus tool holder makita dhr243 powered by efficient 18v makita lxt series batteries. three hammer drill modes: drilling hammer drilling and chiseling 40-position chisel adjustment 2.0j impact energy. handy compact design brushless bldc motor ergonomic anti-slip and anti-vibration handle contoured for better tool control and to minimize operator fatigue and pain. the hammer drill is made with xpt technology - the tools have increased resistance to dust and moisture. the set also includes two quick-change chucks: a cylindrical chuck and an sds-plus chuck. this set comes with two bl1850 18v / 5.0ah batteries a dc18rc charger and a makpac system case.3 operating modes: drilling hammer drilling and chiselingequipped with a quick-change cylindrical chuckbldc - brushless dc motorworks with the dx02 dust extraction system (optional accessory)sliding handle makes it easy to change tools40-position chisel adjustmentelectronic switch allows you to start work at a precisely defined pointunique design of rubber joints - reduces the level of vibrations reaching the batteryeasy-to-adjust depth stopincreased stability of the drill bit in the chucknot compatible with the bl1815 batterycompact design and good balance provide greater control and the ability to maneuverdelivered in a makpac system case with two batteries and a chargermachine compatible with makita bl1815n bl1820 bl1820b bl1830 bl1830b bl1840 bl1840b bl1850 bl1850b bl1860b batteries.dhr243 - sds-plus 2.0j 18v hammer drill2x bl1850 - 18v / 5.0ah li-ion batteriesdc18rc - li-ion chargermakpac system caseinsert for the makpac casequick-change sds-plus type chuck: 194080-7quick-change cylindrical handle: 194079-2depth stop: 324219-0**the photo is for illustrative purposes only.