Carbide drills are tools used to drill through holes or blind holes in solid materials and to ream existing holes. Commonly used drills mainly include twist drills, flat drills, center drills, deep hole drills and nesting drills. Although reamers and countersinks cannot drill holes in solid materials, they are customarily classified as drill bits.
During digging, the drill bit rotates around the vertical axis and moves axially at the same time. The soil is cut under the action of the torque and axial force of the drill bit, and is damaged and smashed under the action of the extrusion and centrifugal force of the working blade, forming a soil flow that is pressed against the pit wall, and at the same time is lifted to the surface along the page. When the soil flow moves to the place where there is no pit wall block, the broken soil is thrown around the pit due to the centrifugal force, and the whole process of digging the pit is completed.
Post time: Jul-29-2022
