Draper expert 1 4 square drive spinner handle draper expert 12454 b i expert quality i b manufactured from chrome vanadium steel hardened tempered chrome plated and polished for corrosion protection spring loaded ball bearing for secure socket holding handle end has 1 4 square drive female aperture for use with 1 4 square drive male accessories sold loose br br b manufactured and tested generally in accordance with din3122 and iso3315 specifications b br br draper expert