Greenlee 825-7/8 Bi-Metal Hole Saw， 7/8-Inch<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Cut through steel， tin， aluminum， fiberglass， wood and plastic</li><li>Deep 1-5/8-Inch cutting depth allows for cutting through 2-Inch by 4-Inch wood studs</li><li>Extra-tough bi-metal blade</li><li>Steam oxide finish with no paint to gum up and slow cutting</li><li>Extra-thick back plate minimizes vibration for smoother， easier， less tiring cutting</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41LjFtMoHGL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31p0bZqsxhL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/211S03MNmwL.jpg" noproxy>