Square holes? No problem. Delta’s industrial mortiser offers precision with a 1/2-horsepower motor behind it. A rack-and-pinion system raises and lowers the head, and the mortising head column swings 180 degrees for off-table work. Clearly a step up from Delta’s MM300 Shopmaster mortising machine, this one’s made with the professional user in mind and includes an adjustable dovetail way on the mortising head, a tool and chisel tray,...