News Angle Grinder Thread & Arbor Size Chart: 5/8-11 vs M14, and Why 7/8" Means Exactly 22.23 mm 5/8-11Whitby AbrasivesJul 22, 2026 Get Updates Get expert tips on abrasives, exclusive offers, and the latest product updates from Whitby Abrasives delivered straight to your inbox. Your email Subscribe100% free, Unsubscribe any time! Follow us