I used it to make a solid driftwood strap. Until now, I had a lot of difficulty because I opened holes all by hand. So, just to be sure, I searched on the net and found out that there is this product that can be used with electric screwdriver. I immediately ordered and started working immediately after obtaining I realized the wonderful work of electric work. However, when the other party drifted through a hard driftwood hole for about 10 times, the drill bites into the driftwood and the two already broke. Although it is a drill close to a pinhole, I would like it to increase strength a little more. Since there are no other similar products, I would like to use it in future as I wish to use it.