Color code:

According to the diameter of diamond grain, there is a color code mark at the end of working head according to ISO standard.

(Green)stands for Large size (C)/100-120#;

(Blue) stands for Standard /120-140#;

(Red) stands for Small size (F)/240-270#;

(Yellow) stands for SS size (EF)V/20-30#.

Note:

When you use the dental burs, the speed of diamond dental burs should be under the permitted speed,

(Blue) 450,000R/S,(Yellow) 300,000R/S,(Red) 160,000R/S.

Usage of some kinds of hign speed Dental Diamond burs：