Draper expert 1 4 square drive satin chrome plated sliding tee bar draper expert 9921 b i expert quality i b manufactured from chrome vanadium steel hardened tempered and satin chrome plated 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 9921 1 4 square drive satin chrome plated sliding tee bar