Universal wet drilling core bits are used for drilling machines.
Type of segment: flat segment, ∧ segment and ∨ segment, turbo segment.
Type of thread: Straight shank; 5/8"-11; M14; UNC 1 1/4"-7; Gas 1/2; 3/4"-6.
For drilling granite, sandstone, basalt, gabbro, marlbe, travertine.