It is a backup pad for grinding surfaces of various types. It is made of special elastic rubberized material that provides sandpaper with the necessary harshness. It is used for installation on angle grinders or on drill with a mounting hole M14 and an adapter.
The backup pad for grinding is produced with account taken of angle grinders (drills) operating peculiarities and designed for rotary speeds to 12200 RPM. This type of backup pad is suitable for all types of sand paper.