The L-shape makes it possible to cut out bonded vehicle windows from the outside without damaging the adjacent body frame. The Viper blades are very robust and are also suitable for massive bondings where many other cutting blades break off. Manufactured from hardened steel with 19 mm double hexagon mount, the blades are compatible with the standard oscillating cutters from Fein, CP, ProGlass, Rodcraft, Equalizer, etc.