internal drilling
81Boring (mechanical) — In machining, boring is the process of enlarging a hole that has already been drilled (or cast), by means of a single point cutting tool (or of a boring head containing several such tools), for example as in boring a cannon barrel. Boring is used …
82Gun drill — Gun drills are straight fluted drills which allow coolant (either compressed air or a suitable liquid) to be directed through the drill s body, directly to the cutting face. They are used for deep drilling of which gun barrels are the obvious… …
83Dye 3 — is an ice core site and previously part of the Distant Early Warning (DEW) line, located at (65°11′N 43°49′W / 65.183°N 43.817°W / 65.183; 43.817 ( …
84Nintoku Seamount — Map Bathymetric mapping of Nintoku …
85Chevron Corporation — CVX redirects here. For the United States Navy future aircraft carrier program, see United States Navy CVN 21 program. Chevron Corporation Type Public Traded as …
86Diamond enhancement — Diamond enhancements are specific treatments, performed on natural diamonds (usually those already cut and polished into gems), which are designed to improve the gemological characteristics and therefore the value of the stone in one or more ways …
87List of Dallas episodes — This is a list of episodes of the soap opera Dallas. The original miniseries from 1978 was labeled as Season One when the series was initially released on DVD in 2004. Although Season One officially began with episode that aired September 23,… …
88Gazprom — Газпром Type Public Traded as RTS:GAZP MICEX …
89Socialist Left Party (Norway) — Socialist Left Party Sosialistisk Venstreparti Leader Kristin Halvorsen (has announced resignation) …
90Energy development — Schematic of the global sources of energy in 2006 2007 …
