BS 772 is a semi-automatic cut-off machine for cutting PVC glazing beads. The cutting system consists of two pairs of blades positioned at 45°. The 225mm blade performs the cutting of the glazing bead, the 103mm blade performs the internal bevelling for hooking the glazing bead. The blade carriage is driven by a pneumatic cylinder, the profiles are clamped by two pairs of vertical clamps.

BS 772 is equipped with a glass simulation system for two profiles with 12-position revolver stop and adjustment of the vertical clamps with 6-position revolver stop.