Fitted new clamps to Ferm saw. Re-drilled fixing screw hole to proper 5mm (sorry axminster your 5mm and Ferm bolt 5mm not quite the same). Filed off raised sides as adapter not perfect fit for Ferm. Then hit problem with adaptors not lining up. Solution...borrow wife's favourite knife on pretext of sharpening and slid into top and bottom adaptor openings. Worked a treat.