My old style Irwin Speedbor set was stolen I just used this new style set for the first time I had to run some 122 romex through a sheer wall that had several 6x6 posts within it I didnt have a heavy angle drill and bits on the truck The 916 bit blew through the 6x6 with ease driven by an 18 volt Ryobi drill It wasnt quite long enough to make it through so I put a 1 inch bit in and counterbored the 916 hole about an inch then used an extension to break through These new design flat bore bits are very capable and a vast improvement over the old style ones Nice bit organizer as well Great price performance value
Rating: [5 of 5 Stars!]