The Sonic 2256317 flank socket is a 3/8" drive, deep 6-point socket sized for 17 mm fasteners. This 17 mm, deep 6-point configuration is designed to fit standard 3/8" drive ratchets and extensions, delivering a secure grip on hex fasteners in a compact form factor. Part number 2256317 identifies this precise 17 mm flank socket from Sonic Tools.
