Comparison Metabo DS 200 Plus 200 mm / 600 W vs Bosch GBG 60-20 Professional 200 mm / 600 W

The nominal speed of rotation of the disk for dry processing (see above), provided by the machine; for models with adjustable rotation (see below), the maximum rotation speed.

For the same disc diameter and material, a higher speed provides more intensive processing, and a slower rotation contributes to accuracy and precision. In addition, optimal speeds depend on the composition of the disc and the material being processed; detailed recommendations with specific figures for a particular situation can be found in special sources.

A separate category is grinding machines with disk-shaped working elements: in such units, the actual speed of movement of the disk surface relative to the workpiece depends on how close the contact point is to the centre of the disk.

The presence of its own illumination in the design of the machine. Usually, such a system takes the form of a lamp attached to the body with a flexible leg. It allows you to brightly illuminate the work area, which is important not only at dusk or darkness, but even in daylight (protective covers and other parts can greatly obscure the working element of the machine).