Designed for perfectly smooth, flat-bottomed and splinter-free holes, even in end-grain and through knots Ideal for drilling decorative holes for fine woodworking and hinge boring Chrome-steel alloy construction allows the bits to withstand high temperatures during drilling, reducing the risk of burning Brad point centers bit for easy positioning of hole Suitable for portable drills or stationary machines Bosch's line of forstner bits are designed for perfectly smooth-flat bottomed holes. Bore high-quality holes that are accurately sized Bore holes with a cleanly cut rim