- Label - Information burned in during manufacturing process and remains on wheel for life of wheel
- Industry color-coded system
- Fiberglass reinformcement - provides extra strength to use wheel at maximum RPM and withstands lateral pressure
- Abrasive grains (mass) - abrasive grains are particles of man-made abrasive compounds. Bosch uses only high-quality grains
- Wheel ring - determines how wheel is attached to tool.

