An indispensable tool for the production and finishing of earmolds. The sharp-edged toothing passes to holes with a clean surface.
The 2.9 mm round bur is the standard for the sound tube bore.
Features
// Material: Steel
// Form: ball
// Diameter: 2.3 mm
// Shaft length: 34.0 mm
// Shaft diameter: 2.35 mm
// Max. speed 20,000 rev / min
Also available in sizes from 1.0 to 4.7 mm