The ANGLE PLATE (S-5879A) measures 3 1/8 x 3 1/2 x 3 5/8" as cast (consider at least 1/16" machining allowance). The ANGLE PLATE (S-5879A) can be mounted on the FACE PLATE (S-5879) for set-ups as seen in the photo, or used separately. The kit for making the ANGLE PLATE (S-5879A) consists of an iron casting, drawing, and instruction sheet. With some make-do set-ups, it is possible to machine the ANGLE PLATE (S-5879A) using just the lathe, as was the prototype seen in the photos.