Generic Thread Compatibility : Supports m 10 , M14, and 5/8 11 thread sizes, ensuring seamless compatibility with most portable angles grinders, polishers, and grinders for easy replacement. Quick Efficient Change : Features a design that allows tool release, hand operated disc changes, significantly reducing downtime and boosting work efficiency. Multi Size Versatile Option : 45mm, 48.5mm, and 50mm diameters with thicknesses of 9.5mm, 13mm, and 13.5mm to fit various grinding discs and polishing pad. portable & sturdy Build : Weighing only 49g~115g, the metal construction is wear resistant and for long lasting stability during heavy use. accuracy Fit & Secure Locking : Engineered with exact diameter and thread tolerances to slippage or wobble, ensuring safe and precise cutting or polishing., Weight: 0.2425084882 pounds, Manufacturer: OOLA.DETAL