How to choose the segment shapes?

Mosdan Diamond Segments Shape Selection 

 ---Arrow Segment : It is more aggressive and usually used for thin floor coating removals and coarse grinding

--- Bar Segment: It is usually used for coarse and medium grinding

---Round Segment: It delivers less scratches and usually used for fine grinding 

In the same counter weight, the less number of the segment, the more pressure of the segment. So we can redice the segment number to get a higher pressure of the segment, to get a better grinding performance for extremely hard concrete. Single segment is good choice for extremely hard concrete.