Draper expert 1 4 square drive x 1 4 hexagon screwdriver bit holding socket draper expert 85125 b i expert quality i b insert bit holder with spring clip and ball bearing for secure bit holding forged from chrome vanadium steel hardened tempered and chrome plated for corrosion resistance display packed br br b manufactured and tested generally in accordance with din3122 and iso3315 specifications b br br draper expert 85125 1 4 sq drive hexagon screwdriver bit holding socke