Kapro has developed a simple way to make everyday carpentry jobs easier. The 309 legend has a unique, ergonomic handle with a support ledge that holds the work surface, so it stays square hands-free when you need to mark or reach for other tools. A pencil-notch on the support ledge is designed as a reference point. And the hardened, tempered stainless-steel ruler is chemically etched with all the angles youll ever need. Just mark 2-points and draw a line.