IRWIN Tools 1899935 Impact Performance Series Lobular Nutsetter Insert Bit， 1/2-Inch and 2-Inch Length<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Built for maximum durability and long life with impact drivers</li><li>Lobular design drives fastener on side instead of corner for less stripping and longer life</li><li>Rare earth magnets， with four times the hold of standard magnets， holds fasteners securely</li><li>Black oxide finish resists corrosion and increases life of bit</li><li>1/4" quick-change shank is designed to work with impact drivers， and reduces slipping in standard drill chucks</li></ul></div><img src="http://ecx.images-amazon.com/images/I/417SVQIK48L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61zdMcx1HzL.jpg" noproxy>