Drill bit (jet crusher) is an important tool for direct hole making and rock breaking. Used in combination with drilling equipment such as drilling rigs and drill pipes, the drill bit rotates under the drive of machinery, and the whole drill bit carries out centripetal movement and cracks and breaks up the coal seam or rock through encroachment and milling, playing the role of coal seam cuttings. The drill bit has excellent features such as fast drilling speed, wide milling coverage, time and labor saving, simple interface and durability.
Hydraulic slit coal rock drills are divided into rock drills, coal seam drills, and rock-coal seam general-purpose types.
In terms of shape, they are further divided into concave three-wing scraper blades, carcass bits, PDC alloy reinforced bits, PDC alloy common bits and openable bits.