How disc sizing works
Class ladder, RPM, and when to go larger.
Angle grinder disc screen
Enter needed disc diameter in inches. Get the smallest 4.5 / 5 / 7 in corded class — or NO_MATCH. Confirm RPM rating of discs and keep the guard on.
Match the smallest class whose disc size covers your need. Classes: 4.5 · 5 · 7 in. Above 7 → NO_MATCH.
Class ladder, RPM, and when to go larger.
Same tool with room for examples.
When each class fits — and when none do.
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