Manufactured from grey iron castings, this 4in faceplate is individually machined on external faces to a tolerances of 1/1000th of an inch. Eight countersunk location holes are goemetrically located to ensure optimum holding position. Woodscrews are not supplied, however we recommend the use of No. 14 Countersink screws, length of screw will vary depending on application. The CWA70 faceplate is suitable for bowls up to 16in For use on any lathe with a 3/4 x 16tpi spindle.