- Made of a special aluminum alloy, producing a tough casting that is very durable but light in weight
- All castings are seasoned, before and after milling, to stabilize the casting and assure the user a level that stays put
- Precision-milling insures parallel sides - accurate to 0.001" from end to end
- "Solid Step" Cat's eye yellow vials insure built-in accuracy
- All vial openings have protective glass lenses
- The edges are painted "Contractor Red"