Measuring Instruments Aluminum Miter Saw Protractor Rust Proof Angle Finder Spirit Level. Heavy Duty Aluminum Frame: Casting aluminum frame ensures no warp or twist for durability. Professional Accuracy Vials: Two fixed vials with 0.5mm/m accuracy for precise measurements. High Flatness Surfaces: Double milled surfaces provide superior flatness for accuracy. Custom Branding Available: Your brand can be carved directly on the level surface. Ergonomic Handle Design: Designed with human engineering for comfortable handling. Convenient Hanging Holes: Equipped with two hanging holes for easy storage and transport. Protective End Caps: Comes with plastic end caps to protect the tool and user. All Sizes and Colors: Available in all sizes and colors to meet specific needs.