These things are hopeless! The Chinese didn't even bother to sharpen the color around the edges. The steel is soft. They can be easily sharpened with a file if used frequently. This design has no spurs - just a blunt cutting edge. You will drill a hole, but not clean.
This bit is ideal for those who need to repeatedly drill large holes in wood several inches thick. It eats nails like butter and requires little effort from the user as the drill goes through the material easily. However, a very strong drill is required and I use a Milwaukee Super Hawg.
I used to order these for my company because I thought they were good quality and had good customer service and they were the only 1-1/ 2 inch bits I could find. But after four of them sheared off the drive side after a week of use, I was sure they either got a bad batch of steel or were cheaper. What would be wrong. So bad if Milwalkie was even interested in fixing a potential problem with their production. In short, save time and money, buy more expensive wooden owls or lenox bits, I won't…