Clamp with reference point RSFP-X90-74Shipping: Estimated 5 8 Days Clamp with reference point RSFP X90 74 The RSFP X90 74 clamp with reference point RSFP X90 works for elements up to 200 mm wide. Its for fast and precise reference points on elements such as beams, door and window jambs, wall openings, etc., up to a width of 200 mm. Prisms and targets can be quickly and easily fixed without damaging the surface. For repeatable measurements, the area beneath the RSFP X90 reference point can