41 - FLAT CUTTING-OFF WHEELS
42 - DEPRESSED CENTRE CUTTING-OFF WHEELS
The Type 41 and Type 42 grinding wheels make a numerous, popular group of general purpose and specialized abrasive tools intended for cutting-off various materials.
They are commonly used in building, steelwork, machine-building, shipbuilding, metallurgical, foundry, chemical and other industries as well as in tool rooms and smaller workshops.
Depending on their size and requirements they operate on the following types of grinding ma¬chines: portable, bench, tool, laboratory, fixed, swing frame, carriage with electric, pneumatic, hydraulic or engine drive.
They are reinforced with glass fiber discs and intended for operation at speeds 80 [m/s] and 100 [m/s] (special reinforcement).
Limitation in use: RE6 “Face grinding prohibited”