The Bosch RM 2 magnetic rotating mount features a microfine rotation adjustment knob, for precise adjustment and secure locking of the working height to adjust the laser lines with a high degree of accuracy. The 360° rotating mount rotates to position the vertical line, while keeping the unit centered on the plumb line. This unit has strong magnets for quick positioning to metal surfaces, and the slide-in attach mechanism provides easy and quick attachment of Bosch lasers with compatible slide housing. It is ideal for Bosch GCL 2-160 and GCL 2-55, because the RM 2 positions the vertical line and keeps the unit centered on plumb points. It works with the optional BM3 for quick setup in ceiling-grid applications. The RM 2 also works with Bosch models GLL 100 G, GLL 100 GX, GLL 50 and GLL 55.