Basic types of carbide drills

There are four basic types of carbide bits: solid carbide bits, indexable carbide bits, welded carbide bits, and replaceable carbide crown bits.

Solid carbide bit

Solid carbide bits are suitable for use in advanced machining centers. The Drill Bits are manufactured from fine grained carbide materials and coated for extended service life. The specially designed geometric edge enables self-centering, providing excellent chip control and removal when drilling most workpiece materials. The self-centering function and tightly controlled manufacturing accuracy of the bit ensure the quality of drilling holes, eliminating the need for further finishing after drilling.

Carbide indexable blade bit

The drill with indexable carbide inserts has a wide range of processing aperture, and the processing depth ranges from 2D to 5D(D is the aperture), which can be used in lathes and other rotary machining machines.

Welded carbide bit

The welded carbide drill is made by solidly welding a carbide crown to the steel drill body. This kind of drill uses self-centering geometric edge type, cutting force is small, can achieve good chip control for most workpiece materials, machining hole surface finish is good, dimensional accuracy and positioning accuracy are very high, do not need to carry out subsequent finishing. The bit is internally cooled and can be used in machining centers, CNC lathes or other high rigidity, high speed machine tools.

Replaceable carbide crown bit

Replaceable carbide crown bit is a new generation of drilling tools developed in recent years. It is a combination of a steel drill body and a replaceable solid carbide crown. Compared with welded carbide bits, the machining accuracy is comparable, but the replaceable crown reduces machining costs and increases drilling productivity. The drill provides precise aperture increments and self-centering capabilities, resulting in high aperture machining accuracy.