KEO 55532 Cobalt Steel Single-End Countersink， Uncoated (Bright) Finish， 6 Flutes， 82 Degree Point Angle， Round Shank， 1/2" Shank Diameter， 1-1/4" Body 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/41HZMIL1BhL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/31wHcWwaM5L.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/512NUex7CrL.jpg' noproxy></br>