accuracy Fit & Secure Locking: Engineered with exact diameter and thread tolerances to slippage or wobble, ensuring safe and precise cutting or polishing 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 auto locking design that allows tool release, hand operated disc changes, significantly reducing downtime and boosting work efficiency portable & sturdy Build: Weighing only 49g~115g, the metal construction is wear resistant and rust proof for long lasting stability during heavy use 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, Manufacturer: Hsyzygian