DIE size :-1.1/2 BSP dies = 1-1/2" x 11 BSP dies or 1.1/2x11 Pipe die
DIE size :-1.3/4 BSP dies = 1-3/4" x 11 BSP dies or 1.3/4x11 Pipe die
DIE size :-2" BSP dies = 2" x 11 BSP dies or 2"x11 Pipe die