Dewalt dt7508 12 drive hex to hex drive impact adaptors dewalt dt7508 qz this 1 2in drive to 1 4in hex impact adaptor from dewalt has a hardened core for extra strength and durability while a flexible torsion zone absorbs torque peaks and reduces breakage torsion bits only dewalt dt7508 qz 1 2in drive to 1 4in hex impact adaptor