Here's how to install a new internal drive as extra storage or as a new boot drive. Here, we installed Seagate's Barracuda 7200.10, a $124, 320GB Serial ATA (SATA) drive, inside a Dell Dimension 8400 running Windows XP Home Edition.
The tamping rod is a round, straight steel rod used with concrete cylinder molds, slump cones, and unit weight tests. Measures 5/8 diameter by 24 length. Both ends are rounded to a hemispherical tip. The tamping rod is plated for rust resistance and has a 6 scale in 1/4 increments engraved on end of the rod for measuring the slump. The Cat# TR375 is a 3/8 diameter by 12 length, rounded hemispherical tips, less scale.
A grounding rod is a safety component of an electrical system which carries current away from a surging electrical circuit and routes it safely into the ground. Grounding rods are required for many electrical systems all over the world for safety reasons, and in regions where they are not required by law, they are in common use because they are excellent safety devices which are affordable to install.