The Flex BED163 is a portable core drilling unit with anchor or vacuum attachment. The 17.6 Amp strong, three speed drill BSW 2123 C combined with the BD 160 stationary drill stand. It is a lightweight, mobile unit for one-person operation. The drill bits are cooled directly by the central water supply. The seals can be replaced quickly from the outside. The combination shaft with two connections, G 1/2” inside, 1-1/4” UNC outside, makes the connection of standard drill bits possible. The water collector ring prevents water damage. The quality shut-off carbon brushes if the carbon brushes wear down, the motor will be automatically switched off and thus protected from damage.