A method of cleaning and deburring by mechanical action. Some tumblers rotate articles in a cylinder, while others use vibration. For ring tumbling, stainless steel shot, sand, rice, or nothing at all are common tumbling media.
v. In metallurgical terms, the act of treating a metal so as to adjust it away from maximum hardness so as to achieve a desired balance between strength and brittleness. n. Commercial wire suppliers (and maillers) often use this term somewhat incorrectly to refer simply to the hardness of a metal. A range of terms are used to represent the spectrum of hardnesses, some of which are presented below. In order: - Annealed (aka Commerically Soft) - Quarter Hard Temper - Half Hard Temper - Three Quarter Hard Temper - Full Hard Temper - Extra Hard Temper - Spring Hard Temper - Extra Spring Hard Temper