DEWALT DWA1872 4-1/2-Inch Hole Saw</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Improved Bi-Metal material extends life and speed in all applications</li><li>Double tooth design strengthens each tooth for longer life</li><li>Deep cut style hole saws will cut 2x material in 1 pass</li><li>Increased high speed steel height improves hole saw durability (highest in the industry)</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/51yyGdB%2B3AL.jpg' noproxy></br>