MM 1/4"Dr 13MM 6Pt Dp Socket

Master Mechanic, 1/4" Drive, 13 mm, 6 Point, Deep Well 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.