Draper expert 1 4 square drive sliding tee bar display pack draper expert 26838 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 display packed br br b manufactured and tested generally in accordance with din3122 and iso3315 specifications b br br draper expert 26838 1 4 square drive sliding tee bar