Irwin 4935705 12-Inch Speedbor Lock N' Load Quick Change Bit Holder , Black

Carbon steel construction sleeve and body for durability and life | Designed for one-handed quick release | The patented jaw design holds bits securely on 6-flatted shanks, as well as ball detent bits | The 1/4-Inch quick change range now holds insert bits and uses magnets for holding the bits | Used for Spade Bits, Fastener Drive, Speedbor Max, Small Size UnibitsFrom the ManufacturerThe Irwin Tools 4935705 Speedbor 1/4-Inch Lock N' Load Quick Change Bit Holder 12-Inch Over All Length has a Carbon steel construction sleeve and body for durability and life. The Lock-n-Load system is designed for one-handed quick release to get the job done quicker. The Patented jaw design holds bits securely on 6-flatted shanks, as well as ball detent bits. The 1/4-Inch Quick Change range now holds insert bits and uses magnets for holding the bits. The 1/4-Inch Lock N' Load exntension can be use for Speedbor Blue Groove Bits (All Sizes), Speedbor Max Speed (Sizes 7/16-Inch to 1-1/4-Inch), Fastener Drive (All products), UNIBIT (Sizes #1, #2, #10, #12), 1/4 Hole Saw Arbor (Sizes 9/16-Inch to 1-3/16-Inch), and Countersinks (Sizes #4 to #12).