The Stiletto 4-1/2 in trim square is designed for precision and efficiency, ideal for finish carpentry. Additional scribe holes aid in laying out common angles, ripping boards and setting saw blade height. The 1/4 in and 3/16 in revel gauge help quick set door casings, while the bottom heel ruler provides marking versatility. The 4-1/2 in Trim Square is fully machined, with an anti-glare finish and the most durable coating.Most durable coating anti-glare, hard coat anodized finish extends life of laser etched markingsFully ruled bottom heelScribe holes every 1/8 inHighly visible laser etched markingsMade in the USA