SKU: SP22315 Extension Bar 3/8” Dr 75mm - SP Tools 3/8'' x 75mm Extension Bar Extension Bar 3/8” Dr 75mm - SP Tools  The SP high performance range of Sockets and Accessories are designed to incorporate the needs of professional tradesman.  Chrome vanadium steel for high durability (CRV)   Flat drive technology to maximize grip   Quick release system for easy socket changes   Cushioned grip handle for operator comfort   Specially strengthened ratchet gear teeth to sustain maximum applied torque. Read more