Draper Expert 100mm 3/4" Square Drive Extension Bar
- Draper Expert 10172, Expert Quality, manufactured from chrome vanadium steel hardened, tempered, chrome plated & polished for corrosion protection. Spring-loaded ball bearing for secure socket holding. Sold loose. Manufactured & tested generally in accordance with DIN3122 & ISO3315 Specifications Draper Expert 10172 400mm 3/4" Square Drive Extension Bar