Dividing Plates for 4 to 6″ Vertex Rotary Tables ~ Fits Vertex Brand Only ~ Set includes: index plates, crank handle, 3 screws, sector & U washer. ~ Plate A – 15, 6, 17, 18, 19, 20 ~ Plate B – 21, 23, 27, 29, 31, 33 ~ Plate C – 37, 39, 41, 43, 47, 49