Brush for making projecting edges of steel parts as round by machining, has head forming revolution solid, and external side face including concave main part formed from abrasive material used to machine steel part

摘要

The brush (1) has a head (10) for forming revolution solid that is rotated with respect to a longitudinal axis (A). The head comprises an external side face (20) that includes a concave main part (25) formed from an abrasive material used to machine a steel part. The external side face includes a non-concave part formed from the abrasive material and another non-concave part formed from the abrasive material located at both sides of the concave main part. Junctions between the non-concave parts and the main part are round in shape. The non-concave parts are in shape of cylinder and cone.