CMT 537.400.31 Forstner Bit， 40mm (1-37/64-Inch) Diameter， 10mm Shank</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>3-35/64-Inch Overall Length， Right-Hand Rotation.</li><li>2 spurs， 2 precision ground cutting edges， long-lasting cutting performance.</li><li>Drill precise flat bottom holes with no chipping in any thickness of soft wood.</li><li>For drilling holes in any direction and making arched openings.</li><li>For drilling partially overlapped flat bottom holes or niches used to fix supports.</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/311VNmLaT7L.jpg' noproxy></br>