Bosch CO2147 5/16 In. x 4-1/2 In. Cobalt Drill Bit<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Withstands high-temperature applications for extended periods of time (up to 1，100 degreeF)</li><li>Rigid， thick web design adds stability to bit in tough applications</li><li>Surface hardened to penetrate tough abrasive materials</li><li>Available in jobber length， full shank</li><li>Best used for drilling into light-gauge metal， high-carbon steel， aluminum and ally steel， cast iron， stainless steel and titanium</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31-2ESTP7QL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41ec1brWQBL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51PPWgF5ZfL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/5189DqRLxqL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/4190GODJW5L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51GbFS3xk-L.jpg" noproxy>