Review on ChgImposs Woodworking Mortising Countersink Woodworker by Scott Ward

I needed to drill 1" square holes in Trex decking for a railing system. Although the drill combination did not produce the required holes, the tool is very sharp and made from high quality steel. So I used it to drill a round hole, also marking the corners of the square. I then got out my drill bit and used a square chisel with a big hammer to make the square holes. It worked well and I was satisfied with this tool.