Tiancheng round shank electrical hammer drill bit with two pits and two grooves percussion drill bit concrete drill bit with complete specs

High-grade alloy electric hammer drill bit is made of great 40cr steel and raw material YG8C hard alloy. Basic as great raw materials, the hardness is greatly improved by high-temperature quenching, and the surface treatment of the series makes this product more beautiful and longer service life than the general medium carbon steel drill bit from appearance and use.

The electrical hammer drill has no blades, only a 135-degree alloy chisel head. It drills holes by chiseling objects. It rotates to discharge powder and debris, and also to chisel circular holes. This nature determines that the electrical hammer drill can only deal with high hardness, brittle objects, such as concrete, brick walls, stones, granite, ceramic tiles (proposed to use special drill bits) and other hard broken items.