Bosch uses only superior virgin grains made to exact specifi cations. The chemical structure of the grains determines the physical properties (e.g. shape, sharpness, hardness, friability).
Common grain types used include:
Aluminum Oxide: A tough, block- shaped grain used for cutting metals and other high-tensile strength materials without excessive fracturing.
Silicon Carbide: A hard, sharp abrasive suited for non-metallic materials such as concrete.
Aluminum Zirconium: A fi ne, dense crystalline grain that can be used for rugged stock removal.
Bonded Abrasive Wheel Types
Type 1A (ISO 41)
Application Cutting Shape
Type 27A (ISO 42)
Cutting Type 27 Grinding Type 28 Grinding Type 29
Blending, Grinding
Straight Wheel Depressed Center Wheel
Description
Used at a 90° angle. For cutting only, no grinding.
Used at a 90° angle for light cut-off work.
Depressed Center Wheel
For use on flat surfaces for weld preparation. Best used at a 30° angle.
Saucer-Shaped Wheel
For weld prepa- ration and sur- face de-burring. Best used at a 15° angle.
Flexible Wheel, Flap Disc
For blending and stock removal on uneven surfaces. Best used at a 10° angle.
Color-Coded System Metal
Stainless
Pipeline
Aluminum
Concrete/Masonry Asphalt
Thin Cutting Abrasive Wheels
▶ Up to 50% faster ▶ Requires less force ▶ Excellent for vibration-free cutting / no burring