Tip: Accepts 1/4" Hex Shank Bits/TipsOverall Length: 3"Shank: 1/4" HexStainless Steel ConstructionTwo Powerful Magnets Create 40X More Pulling Force Over Ordinary Magnetic Bit HoldersDesigned To Withstand The High Torque Of Impact DriversSliding Front Sleeve Puts 2nd Magnet In Direct Contact With Screw Head For Max Holding PowerWorks Well With All 1" Insert Bits With A 1/4" Hex Shank