Abstract: A laser tool comprises at least one laser emitter, a housing, and a support. The laser emitter is for emitting at least one laser beam from the tool. The housing supports and at least partially contains the laser emitter, and the housing and the laser emitter may comprise a laser unit. The support is external to the housing, for supporting the housing, and the support is adjustable for orienting the housing and thereby orienting and positioning the laser beam. The support preferably is a gimbal support, having at least two, preferably at least three, for example exactly three, non-parallel rotational axes, for adjusting the support to orient the housing and thereby orient the laser beam. A laser tool system may comprise two or more laser units and the support.