Core drilling refers to the mechanical process that is designed to drill small or large holes through all masonry types of building materials & rock, to insert all services, for core samples or just too simply remove concrete. Core drills are run by numerous types of core drilling rigs.
The core drill bits are composed of a steel tube with diamond segments laser welded on its drilling end. Their sizes can range in diameter from 12 mm to 1 metre and drilling depths is almost boundless with the help of extensions. It is often anchored to the surface with the aid of bolts or through vacuum suction. The diamond segment rotates as water feed passes through the centre to lubricate and prevent overheating the segments. There are also various types of hand held core drills.
Core drilling is applied whenever the core has to be preserved or when drilling requires a specific core hole size for a specific application. This is the main reason why diamond-tipped core drills are typically employed on construction sites where core holes are needed for water system applications, heating system applications, electrical system applications, gas supply system applications, plumbing applications, mechanical penetrations and other precise circular penetration through all concrete & masonry materials.