New 1/4 inch Quick Release Magnetic Screw Bit Holder with Magnetic Tip 

✦ Ready to use for impact driver and electric drills
　for quick change and adjustment.
✦ Powerful magnetic inside to prevent bits losing.
✦ Made of high quality steel to give you long lasting
　and maximum durability.
✦ The magnetic screw bit holder accepts any 1/4" hex
　shank accessory.
✦ Ideal for wood work, wood framing, carpentry,
　installing plywood subfloor and building crates and more.