SK Hand Tool 44498 1/4-Inch Drive Socket with Bit Holder, Chrome SureGrip Drive Design drives the side of the fastener, not the corner, to provide increased strength And avoid rounding of rusted or damaged fasteners This product does not come with a magnetic holder. The bits are held in with a friction hold. High polish SuperKrome plating results in a jewelry-like finish providing long life and maximum corrosion resistance