As correctly pointed out by ASimpson, there are classification of fits which are application specific. He lists the metric version, imperial are equivalents noting 1.0 inch = 25.4 mm. There are several good references on this, look to the web. But the Machinist Handbook does discuss this, at least in the 23rd edition.
How does Dhea work? DHEA is a parent hormone produced by the adrenal glands near the kidneys and in the liver. In men, DHEA is also secreted by the testes. It is changed in the body to a hormone called androstenedione. Androstenedione is then changed into the major male and female hormones.
1 DHEA-S - Produced primarily by the adrenal glands, DHEA is the most abundant steroid hormone in the human body. 2  DHEA plays a fundamental role in hormone balance, as well as supporting oneâs immune function, energy, mood, and maintenance of muscle and bone mass.jaculation within 48 hours preceding the blood draw may elevate the PSA in some men. This panel contains the following tests: 1  DHEA-S - Produced primarily by the adrenal glands, DHEA is the most abundant steroid hormone in the human body.