Carbide bits are divided into four basic types: solid carbide bits, indexable carbide inserts, welded carbide bits and convertible carbide crown bits. Each bit has the benefit of being suited to a particular machining premise. Carbide bits break rock by weight on bit and impact load generated by rotation. In rock drilling, the drill bit is subjected to high frequency impact load, and is subjected to torsion, bending, stretching, compression and other complex stresses. In the environment of high-speed rotary collision, the drill bit is subjected to wear and corrosion of rock, rock powder and mineral water and other working media.

We are manufacturer that specilising in drill bits, hole saw and saw blades.etc

Free sample is available.Lead time will be 7days.

Contact me if you have any questions for twist drill bit, dtep drill bit and wood working drill etc.

As the outlook of hammer drill and masonry drill almost the same,many people can not distinguish them.So how to differ from hammer drill and masonry drill. We only need to look at the shank. Hammer drill had SDS-PLUS shank and SDS-PLUS shank. Masonry drill only has round shank. So it is quite easy to distinguish.

We can aslo provid you electric hammer drill,hole saw and saw blades...