Targeting cubes for MRI breast biopsy procedures and a proximal telescopic needle rotation device are described and claimed. All embodiments of the targeting cubes have four access holes. Individual embodiments also include: a friction lock to a grid and a lock to a Z-stop; a rotating bezel to lock to the grid and the Z-stop; a lock to the grid through a telescoping-latching mechanism and a lock to the Z-stop; a built-in Z-stop carriage assembly and a rotating lock to the grid; and a built-in Z-stop that locks in place via a hinge.