CGW 59020 12" X 2" X 5" T7 RA-46J/K 46-Grit Ruby Aluminum Oxide Surface Grinding Wheel

CGW 59020 is a 12 inch diameter, 2 inch wide, 5 inch face, Type 7 surface grinding wheel designed for high-precision material removal on tooling and other metal components. The wheel uses RA - Ruby Aluminum Oxide abrasive, known for sharp friability and good form retention, which supports efficient stock removal while helping achieve a controlled finish on prepared surfaces. The wheel is configured with a 46-grit size and a J/K hardness rating, indicating a balance between cut-rate and wheel rigidity suitable for moderate to heavy grinding applications. With an operational RPM of 2220, this wheel is intended for compatible grinders that can sustain higher rotational speeds, and it’s packaged as a single unit per box for straightforward inventory handling.

This wheel is described as rugged enough for rough grinding of tool steels and alloys containing high chromium, suggesting suitability for challenging steels where a combination of material removal and edge stability is important. The use of ruby aluminum oxide contributes to a friable yet tough grain structure, which tends to expose new cutting points as the wheel wears, supporting continued grinding efficiency. Users should consider the wheel’s face dimensions (12" diameter, 2" width, 5" face) to ensure proper fitment in the work area and grinding machine spindle compatibility, as well as the correct arbor/shank size specified for mounting.

For best results, select this wheel for applications requiring aggressive stock removal on hard-to-grind steels while maintaining a relatively fine surface finish due to controlled grain size. Verify grinder compatibility, rpm limits, and mounting hardware before operation, and ensure appropriate safety practices and PPE are in place when performing surface grinding tasks.

Features:

• RA Ruby Aluminum Oxide grain for robust material removal
• 12" diameter, 2" thick wheel with 5" arbor/shank
• Type 7 profile suitable for surface grinding
• 46 grit for efficient rough grinding and precise finishing
• J/K hardness optimized for tool steels
• Operates at 2220 RPM
• Designed for heavy stock removal with good form holding