The NEW Morton Portable Glass Shop. The PG01B is the updated version of the PG01. The Previous model was retired in March 2004. All Morton Surfaces work with either model. Any markings, on your current Morton Surface, are easily modified to work with the new model. The PG01B is a jig cutting accessory for any Morton Surface and is not compatible with other grid surfaces. The manual and audio CD will get you off to a fast start cutting strips and other geometric glass shapes. New features like a reversible Squaring Fence for regular and thin art glass, cool new fixtures like the fast angles, both metric and inch scales and audio support makes the PG01B a must have for art glass enthusiasts.