The DEWALT 7/16 in. impact ready cleanable nut driver allows users to detach the nut driver from the shank to clean off debris that accumulates from use. Robust magnetism provides excellent fastener retention for greater ease of use in all hex head fastening applications. The universal shank accepts detachable nut driver sizes from 1/4 to 1/2 in. and is engineered for use in impact drivers.