MM 1/4"Dr 9MM 6Pt Dp Socket

Master Mechanic, 1/4" Drive, 9 mm, 6 Point, Deep Well Socket, Chrome Vanadium Steel, Surface Drive, Design Contacts TheFlat Surfaces On Fastener Instead Of Corners, Reduces Slippage, Reduces Rounding Of Fastener & Will Still Grab On Slightly Rounded Fasteners.