Abstract: The flush-fit mounting of an accessory such as a sink or bowl in a surface of hard material such as granite or marble can be achieved by a method comprising the steps of:forming an opening in the mounting surface for seating the accessory within the perimeter of the edges of the opening;supporting, in proximity to the opening, a guide means having the contour of a mounting edge of the accessory,cutting, using cutting, means movable in relation to the guide means, the edges of the opening to provide a bevelled edge suitable for mounting the accessory edge in flush-fit fashion; andadjusting the cutting means in relation to the guide means as necessary, during the cutting step, so as to maintain the cutting means sharp while maintaining uniformity for the bevelled edge over the perimeter of the opening.