MM 1/4"Dr 4MM 6Pt Socket

Master Mechanic, 1/4" Drive, 4 mm, 6 Point, Shallow Socket, Chrome Vanadium Steel, Surface Drive, Design Contacts The Flat Surfaces On Fastener Instead Of Corners, Reduces Slippage, Reduces Rounding Of Fastener & Will Still Grab On Slightly Rounded Fasteners.