Description of πͺ΅ Bosch FB008 Forstner Bit: Precision Drilling for Woodworking Projects
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. Designed for perfectly smooth, flat bottomed holes. Ideal for drilling decorative holes. For use in wood. Perfect for fine woodworking. Diameter is1/2-inch.
Clean drive hole in native and exotic woods but will cause a crack on the underside. If you don't have to worry about the bottom of the wood, or if you don't drill all the way through, this is going to be hard to beat.
Bits arrived in a wooden box with foam inlay. Time will tell how long it will last. Right out of the box, every 10-bit I've used was clear and accurate with no noticeable wobble. When using a 7/8" bit for 10 consecutive 1-1/2" deep holes, the bit was actually quite warm, not hot.
I used this drill bit to drill holes for four pepper mills - butts - in medium density wood. Drilled on a low speed lathe. It generated a lot of heat and after the fourth hole the drill went completely dull and seemed to lose control. I would recommend spending a little more to get a better quality HSS bit that won't burn out easily.