I've got a project coming up to install log railing on stairs & landings. What I am looking for is a drill guide to drill holes on an angle to match the stair pitch, holes will be drilled with a 1.5" self feeding forstner bit. What I have been looking at is a Wolfcraft 4525404 Multi Angle guide. I still need to determine if the chuck will open enough for the bit shank. Anyone have experience with tool or can recommend something similar. The appealing feature of this tool is the unlimited adjustment 0-45 deg.