Speed Stairs Setter Raimondi 171Speed Step Setter Stairs Setter Raimondi 171 (Pair) For fast and accurate setting of steps. They prevents the movement of the tread and the riser. The 90 upright keeps the riser in the desired position. The graduated and sliding staffs show the projection of the tread over the riser. Can be used for tread depth of 5 to 55 mm. Only useful for monolithic tread and with lowest projections 25 mm