BOSCH RM2 Magnetic Rotating Mount with Fine Adjust features a microfine rotation adjustment knob for precise adjustment and a secure lock of the working height to adjust the laser lines with a high degree of accuracy. BOSCH RM2 Magnetic Rotating Mount with Fine Adjust features 360° rotation to position of the vertical line while keeping the unit centered on the plumb line and has strong magnets for quick positioning to metal surfaces as well as a slide-in attach mechanism providing easy and quick attachment to Bosch lasers with compatible slide housing.