<li>For use in .38" or larger electric drills and hand braces </li><li>Solid center design provides extra rigidity while boring </li><li>Wide lands keep the bit straight as it bores through the hole </li><li>The flutes are ground behind the lands to funnel chips to the inside of the bit and away from the outside diameter, producing a faster, cleaner cut </li><li>Single-spur cutting edge scribes the circumference of the hole for a smoother finish </li><li>Full-length heat treated bit guards against bending in heavy-duty applications and strengthens the twist where the greatest strain occurs </li><li>Coarse screw point provides fast boring in hard and soft woods </li><li>4-.50" twist length and a 7-.50" overall length </li><li>5/16" diameter </li><li>Length: 12</li><li>Width: 0.31</li><li>Height: 2</li>