Special Features:

Double-ended, split extension, navel brass 4686, single tipped one end with 7/32in tip depth cut at 5 degrees to 0.105in/thk and the other end having 2 pc steel clock spring 0.012x3/16x1/2in., spread apart, soldered in place 0.180 deep into end

Properties:

An item having one end designed to fit into the end of a screwdriver bit handle and the opposite end designed to accommodate a screwdriver bit. It is specifically designed to extend the length of a screwdriver bit.