Allfit Trapezoid blade, deep edged, blunt tip Blade # 1760099.70 for use with: Secupro 625, Secupro Megasafe, Secupro Maxisafe, Secunorm 525 Blade # 1765232.25 for use with: Secunorm 500, Secunorm 300, Secunorm Mizar, Secunorm Profi