Job Description:

• 1) Lays out axis through light and heavy centers of bowling balls and gauges and grades balls according to size, color, and quality: Floats bowling ball in mercury pool and locates and marks center of light side, using plumb bob and grease pencil.

• 2) Places ball in jig and locates center of heavy side, using center gauge.

• 3) Examines ball for defects and color quality, measures size with ring gauge, and marks data to be engraved under trademark, using grease pencil.

• 4) Places rejected balls aside for reworking.