Sintered segment dry vacuum brazed diamond core drill is designed for abrasive granite and other construction materials.

 Product features: 
Amazing Long life and fast drilling speed; 
Vacuum brazed side protection offers clean cut & steel core protection; 
Dry use for granite, can be also used wet. 

Advantages of vacuum brazed tools:

1) For stone, concrete, brick, tile, glass, fiberglass, etc 
2) Perfect safety, excellent fast, high efficiency and complicated shape 
3) Rather longer life than the electroplated tools, similar to sintered type 
4) Made for dry use but can be used wet 
5) Various diamond grain and grade to meet various application-cutting, drilling, grinding. 
6) Environment friendly