- ACCURACY 0.0005 in./in. tolerance in all ten working positions
- DURABLE ALUMINUM FRAME with precision-milled edges for superior accuracy and fixed impact-resistant end caps to support years of hard work
- HIGH-CONTRAST VIAL SURROUNDS and a 300 view with 2% slope markings on the center block vial for ultimate readability
- POWERFUL RARE EARTH MAGNETS offer a reliable hold on metal surfaces
- PRECISION-MILLED EDGES for superior accuracy on the job