Detonating cord in the context of "Drill"

Dimension stone is natural stone or rock that has been selected and finished (e.g., trimmed, cut, drilled or ground) to specific sizes or shapes. Color, texture and pattern, and surface finish of the stone are also normal requirements. Another important selection criterion is durability: the time measure of the ability of dimension stone to endure and to maintain its essential and distinctive characteristics of strength, resistance to decay, and appearance.

Quarries that produce dimension stone or crushed stone (used as construction aggregate) are interconvertible. Since most quarries can produce either one, a crushed stone quarry can be converted to dimension stone production. However, first the stone shattered by heavy and indiscriminate blasting must be removed. Dimension stone is separated by more precise and delicate techniques, such as diamond wire saws, diamond belt saws, burners (jet-piercers), or light and selective blasting with detonating cord, a weak explosive.

Cordtex is a type of detonating cord generally used in mining. "Cordtex" and "Primacord" are two of many trademarks which have slipped into use as a generic term for detonating cord.

It uses an explosive core of pentaerythritol tetranitrate (PETN) inside its plastic coating. It is commonly the thickness of electrical extension cord and has a detonation velocity of approximately 6000–7000 metres per second. It is used to "daisychain" a sequence of explosives together.

Primacord is a brand of detonating cord used in blasting. It was developed in 1936 by the Ensign-Bickford Company. Ensign-Bickford sold their registered trademark for Primacord to Dyno Nobel in 2003. which manufactures it in their Graham, Kentucky factory. The name is also used as a genericized trademark for any detonating cord.