Diamond 539538, ISO 289, medium, 5 pcs / set

ISO Fig. No. 289
Diameter: 0.14 mm
Head length: 8 mm

FG Piranhas own 3-layer diamond
Speed: 30`-300,000 rpm
 
This article is available in several versions.
There are following options available:

• superfine
• fine
• medium
• rough
• extra coarse

The selection here is "medium", also visible on the blue marking of the drill.