Product Description
Handheld machine brushes are stocked in diameters 3, 5 and 6 mm in white, red and grey. Red is the softest version and white is harder than red. The grey version is the hardest and made of stone. The maximum speed for white and red is 7,000 rpm, but grey has a higher maximum speed between 30,000–60,000 rpm, depending on the model.