FUTURO TOP KEYLESS CHUCK 13 MM, 1/2?The first impact-proof keyless chuck, with integrated spring-loaded bit clamping mechanism and dual dust protectionKeyless for quick tool changeFirm grip of clamped tools even under the toughest loadsThe oil-resistant, hard-wearing rubber bellows system protects the thread and the precision press fit from dust and dirtFor clockwise rotating drills only