Profile projector is a device which displays the magnified image of theobject on an appropriate viewing screen. The magnified image serves as an aidto more precise determination of dimension, form etc. The objects like screws,gears used in wrist watches and small templates having holes, bevel edges willnot lend them selves to carryout measurements using instruments like Vernier Calipers and micrometers. Measurements of dimensions on such small objectscan be accomplished using profile projector