Works very well! Read more

This Irwin bit is aggressive because of the spiral tip that sucks the bit into the wood. That's not always a good thing, because drilling fast near the edge can crack the wood, and the exit hole doesn't look clean. The Irwin Speedbor and Bosch Daredevil bits are even more aggressive. I was tempted to go back to my spade bit, which is slow but controllable. I found a trick to make the Irwin bit less aggressive -- by drilling a pilot hole first. That way the spiral tip doesn't have any wood to grab onto and doesn't pull the bit in. I can then control how fast to drill by apply pressure myself. The size of the pilot hole is as large as the largest part of the spiral bit. To make a clean exit hole, I stop drilling about 1 inch before the end. Then I drilled back from the other side, using the pilot hole as the insertion point. With the pilot hole, the 3/4" bit even works with my battery powered drill (3/8" chuck), although it stalls often and the battery is nearly drained after drilling a single 8" hole. For those of you who don't have a 1/2" drill, this is method might work if you only need a hole or two. Read more

Works great Read more

Good quality bit. I have been drilling holes in the ground with it. Still drills right thu after about 75 holes. Read more

Satisfactory and adequate usage. Thank you. Read more