Diamond Core Bits  Manufacturers, Traders, Suppliers

It is mainly composed of connection threads, a core tube (drilling body), and diamond segments. The connection thread connects the bit to the drilling machine; the core tube determines the maximum drilling depth; and the diamond segment is the core working part that determines the drilling effect. They are commonly manufactured via laser welding, vacuum brazing, or electroplating. Most are categorized into wet core bits and dry core bits. Wet bits need water for cooling during drilling and are suitable for hard materials like reinforced concrete, while dry bits require no coolant and are mainly used for ordinary cement and bricks, with limited drilling depth.

Dimensions:
The common diameter range is 5mm - 500mm. For instance, concrete - specific
models often range from 16mm - 162mm, and tile - drilling ones are 5mm - 112mm.
The effective length of common concrete core bits can reach 500mm, and dry core
bits usually have a drilling depth of no more than 300mm.
Other specs:
The matrix of some industrial - grade bits can adapt to ground with a Mohs
hardness of 3.5 - 8. Common adapters are M14 or hex types. When paired with
drilling machines, the no - load rotational speed can reach 740 - 1580 rpm in
different gears, and the diamond segments ensure stable cutting performance
even at high speeds.

Construction & Renovation: It is widely used to drill holes for water supply and drainage
pipes, air - conditioning ducts, and cable trays in buildings. It can also drill holes for installing anchors and steel bars during renovation and realize low - vibration drilling in ancient building restoration to reduce structural damage.
Geological & Resource Exploration: Used in geological prospecting, coal mining, and hydropower projects to extract core samples from stratum such as mudstone and sandstone.
It helps detect the quality of rock formations and mineral distribution, and is also applicable for well drilling and geothermal hole drilling.
Stone & Ceramic Processing: Suitable for drilling precise holes in natural stones like granite
and marble, as well as ceramic and porcelain tiles. It is a common tool in processing decorative stone crafts and tile installation projects.