This is a heavy duty upgrade for Jet 9×20 lathe to replace the factory lite weight 2 bolt design. These are design to fit BD920W and other machine models. Material is 1018 steel with black finish. Mounting hardware included. Carriage stop has laser engraved marking, black satin anodized finish adjustable clamp stop that fitsĀ machines beds ways and .250″ travel AGD group 1-5/8″ faceĀ diameter, graduation .001″ reading and excellent for making parts of equal length. Also the 3″ adjustable screw to limit the machine carriage travel to keep you from crashing the tool post into chuck. Lathe in picture is not included. Please email with questions and availability.