KEO 53519 Cobalt Steel Single-End Countersink Set， Uncoated (Bright) Finish， 82 Degree Point Angle， 5/16" - 1" Head Diameter</br></br></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/51lDdwjzklL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41aNoalpf6L.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/315WFmu7kNL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51FwyqNvvSL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51udofWg%2BNL.jpg' noproxy></br>