Silverline - 1/4INCH SQ DRIVE SPINNER HANDLE - 719776 1/4" square drive spinner handle manufactured from chrome vanadium steel hardened, tempered and chrome plated for corrosion protection. Spring-loaded ball bearing holds socket securely in place. Handle has a 1/4" drive female fitting for use with male accessories. Manufactured in accordance with DIN3120 & DIN5268/2