Einhell sds plus hammer drills einhell 4258428 the einhell rt rh20 is 4 function rotary hammer sds plus drill which features electronic speed control with pre selection and reverse rotation stop optionally with or without chisel fixation and a hammer stop facility it also has an sds plus drill chuck and a metal depth gauge the additional handle has a soft grip for extra control and comfort supplied with a transport and storage case einhell 4258428 rt rh 20 sds plus rotary hammer dr