Selection of shape and diameter should be based on the work piece, and the operation to be performed.
Generally speaking, they can be used for both dental, Jewellery and windshield reparation.
Burs have 8 basic shapes:
There are 12 kinds of standard styles for your choices as following: 
Besides the above standard types, we have the following special purpose carbide bursTF7114, TF7214, TF7714, TF7204, TF7205
For this kind of dental carbide burs, we have 7 kinds of shank as following for your selection.
FGSS, FG, FG long head, FG surgical, RA, RA surgical, HP shank.| Name | ISO | Diameter | Length |
| FGSS | 313 | 1.60mm | |
| FG | 314 | 1.60mm | |
| FG L | 315 | 1.60mm | |
| FG SURG | 316 | 1.60mm | |
| RA | 204 | 2.35mm | |
| RA SURG(25) | 206 | 2.35mm | |
| RA SURG(34) | 206 | 2.35mm | |
| HP | 104 | 2.35mm |