Product detail descriptionAdvanced Disc Holder With 2 Shanks: Our holder are perfectly matched to our quick change easy strip discs with less vibration, which can improve work efficiency and reduce work intensity.2 type shanks (Round/Hex) can be switched freely between electric tools and pneumatic tools for various objects surface.Products includeThe easy strip discs have 3 colors, including Blue(10PCS), Purple(8PCS) and Black(2PCS). 2-inch in diameter and 0.6 inches in thickness with max rotating speed 45,000 (R.P.M) disc pad holder, as well as premium working performance with high abrasive resistanceadapter*2