ITEM NAME:2pcs 10mm+12mm Professional Magnetic Nut Driver Socket Drill Bit Adapter for Description: The bell-shape and magnetic hex insert allow the bit to hold the bit securely in place for quicker installations. Designed and engined for long life and good durability for operating. Used in manufacturing assembly systems and others. Fits all power drills, screwguns, cordless & magnetic drivers Sandblasted, chrome vanadium steel bits. Quick release hex shank will save you time. Specification: Material: Chrome-Vanadium steel Color: As picture shows Size: 10mm/ 0.393inch, 12mm/ 0.47inch Length: Approx 65mm/ 2.56inch Package Includes: 2x Hex Socket Magnetic Socket Adapters(10mm+12mm) SKU: DMO0014229719436490.2x Hex Socket Magnetic Socket Adapters(10mm+12mm). The bell-shape and magnetic hex insert allow the bit to hold the bit securely in place for quicker installations.