Drill bit, which is made of a pair of radial scraper-type blades and a rounded guiding blade, which is the diameter of the hole being drilled. The radial scraper blades remove the wood between the center starter point and guiding blade, as the bit is turned. The blade then cuts the exact diameter of the hole being drilled.
a drill bit specifically designed for cutting large, round flat bottomed holes
a particular type of drill bit that is often used in furniture making and other woodworking projects
a special drill bit for drilling large holes that don't necessarily go all the way through the piece
a specialty wood cutting bit that rides on semi-circular spurs and is used to make a clean flat bottom hole
link These have a center spur and circular rims with cutting teeth that cut clean flat bottomed holes.
A sawtooth bit without the sawteeth if you know what I mean. The periphery is a sharp edged ring. Tends to burn unless used at very low speed. Sawtooth bits, often called machine centre bits, are better for lathe work.
A specialty wood cutting bit that rides on semi-circular spurs. Makes a clean, flat bottom hole, and can be used at extreme angles with a drill press.
A specialty wood cutting bit that makes a clean, flat bottom hole, and should only be used with a drill press. Can be used at extreme angles.