Inner hole and ID (internal diameter) grinding wheels are specialized tools used in precision grinding applications, particularly for machining parts with internal features.

| Diamater (mm) | Thickness (mm) | Hole Diameter (mm) | Diamond Thickness (mm) | Width (mm) | Common Grit |
| 20-900 | 1-100 | customized | 1-50 | 1-50 | D81 D126 D151 D181 D91 D64 D46 |
| Diamater (Inch”) | Thickness (Inch”) | Hole Diameter (Inch”) | Diamond Thickness (Inch”) | Width (Inch”) | Common Grit |
| 1″-36″ | 0.04”-3.94” | customized | 0.04”-1.97” | 0.04”-1.97” | D81 D126 D151 D181 D91 D64 D46 |
While both types of wheels are used for similar purposes, the terminology may vary by industry or specific application. Inner hole grinding wheels may refer more generally to any tool used for internal grinding, while ID grinding wheels specifically denote those designed for internal diameter grinding operations.
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