Champion XL100-1/2 RotoBrute 1/2-Inch Diameter 1-Inch Depth High Speed Steel Annular Cutter</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Recommended for materials with a brinell harness number up to 275.</li><li>Cut clean， bur free holes</li><li>Precision pilot pins eject the center as a plug of steel</li><li>Cuts cast iron， steel and ultra hard or exotic alloys</li><li>Application use must be with Magnetic or stationary drill presses.</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/31RB3P42-8L.jpg' noproxy></br>